{"id":51,"date":"2026-11-04T17:17:38","date_gmt":"2026-11-04T11:47:38","guid":{"rendered":"https:\/\/srsfms.in\/blog\/?p=51"},"modified":"2026-11-05T11:08:48","modified_gmt":"2026-11-05T05:38:48","slug":"sintex-tank-cleaning-vs-cement-kolkata","status":"publish","type":"post","link":"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/","title":{"rendered":"Plastic (PVC) vs Cement Tank: Why the Cleaning Method Is Different"},"content":{"rendered":"\n<p style=\"font-size:14px;color:#007667;margin:0\"><strong>Part 4 of 14<\/strong> \u00b7 <a href=\"https:\/\/srsfms.in\/blog\/\" style=\"color:#007667\">Festival Water Care series<\/a><\/p>\n\n\n\n<p lang=\"bn\" style=\"font-size:20px;color:#0f3d37;margin:4px 0 14px\"><strong>\u09aa\u09cd\u09b2\u09be\u09b8\u09cd\u099f\u09bf\u0995 (PVC) \u09ac\u09a8\u09be\u09ae \u09b8\u09bf\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0 \u099f\u09cd\u09af\u09be\u0999\u09cd\u0995: \u09aa\u09b0\u09bf\u09b7\u09cd\u0995\u09be\u09b0\u09c7\u09b0 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u0995\u09c7\u09a8 \u0986\u09b2\u09be\u09a6\u09be<\/strong><\/p>\n\n\n\n<div style=\"background:#EDF8F7;border-left:5px solid #009F8B;border-radius:10px;padding:16px 18px;margin:18px 0;line-height:1.7\"><strong>Short answer:<\/strong> Sintex tank cleaning, which simply means cleaning a plastic (PVC) tank, is different from cement tank cleaning because the dirt is different. In a plastic tank, iron and sediment form a layer stuck to the plastic walls, so a cleaning chemical is used to loosen it. A cement (RCC) tank does not need this chemical. After cleaning, every tank gets an H2O2 anti-bacterial spray and UV-C sterilization.<\/div>\n\n\n\n<div lang=\"bn\" style=\"background:#FFF8E7;border-left:5px solid #E0A100;border-radius:10px;padding:16px 18px;margin:18px 0;line-height:1.8\"><strong>\u09ac\u09be\u0982\u09b2\u09be\u09af\u09bc \u09b8\u0982\u0995\u09cd\u09b7\u09c7\u09aa\u09c7<\/strong><br>\u09aa\u09cd\u09b2\u09be\u09b8\u09cd\u099f\u09bf\u0995\u09c7\u09b0 (PVC) \u0986\u09b0 \u09b8\u09bf\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0 \u099f\u09cd\u09af\u09be\u0999\u09cd\u0995\u09c7 \u09ae\u09af\u09bc\u09b2\u09be \u0986\u09b2\u09be\u09a6\u09be \u09ad\u09be\u09ac\u09c7 \u099c\u09ae\u09c7\u0964 \u09aa\u09cd\u09b2\u09be\u09b8\u09cd\u099f\u09bf\u0995\u09c7\u09b0 \u099f\u09cd\u09af\u09be\u0999\u09cd\u0995\u09c7\u09b0 \u09a6\u09c7\u0993\u09af\u09bc\u09be\u09b2\u09c7 \u0986\u09af\u09bc\u09b0\u09a8 \u0986\u09b0 \u09b8\u09c7\u09a1\u09bf\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0 \u09b2\u09c7\u09af\u09bc\u09be\u09b0 \u099c\u09ae\u09c7 \u09af\u09be\u09af\u09bc, \u09a4\u09be\u0987 \u09aa\u09b0\u09bf\u09b7\u09cd\u0995\u09be\u09b0\u09c7\u09b0 \u09b8\u09ae\u09af\u09bc \u09b8\u09c7\u0987 \u09b2\u09c7\u09af\u09bc\u09be\u09b0\u09c7\u09b0 \u09ac\u09a8\u09cd\u09a1 \u09b9\u09be\u09b2\u0995\u09be \u0995\u09b0\u09a4\u09c7 \u0995\u09cd\u09b2\u09bf\u09a8\u09bf\u0982 \u0995\u09c7\u09ae\u09bf\u0995\u09cd\u09af\u09be\u09b2 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09b9\u09af\u09bc\u0964 \u09aa\u09cd\u09b2\u09be\u09b8\u09cd\u099f\u09bf\u0995\u09c7\u09b0 \u099f\u09cd\u09af\u09be\u0999\u09cd\u0995\u09c7 \u098f\u0987 \u09b2\u09c7\u09af\u09bc\u09be\u09b0 \u09a4\u09be\u09a1\u09bc\u09be\u09a4\u09be\u09a1\u09bc\u09bf \u0986\u09b0 \u09ae\u09cb\u099f\u09be \u09b9\u09af\u09bc\u09c7 \u099c\u09ae\u09c7, \u09ae\u09be\u099d\u09c7 \u09ae\u09be\u099d\u09c7 \u09ab\u09be\u099f\u09b2 \u09a7\u09b0\u09c7, \u0986\u09b0 \u09b8\u09c7\u0987 \u09ab\u09be\u099f\u09b2\u09c7 \u099c\u09c0\u09ac\u09be\u09a3\u09c1 \u099c\u09a8\u09cd\u09ae\u09be\u09af\u09bc\u0964 \u09b8\u09bf\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0 \u099f\u09cd\u09af\u09be\u0999\u09cd\u0995\u09c7 \u098f\u0987 \u0995\u09c7\u09ae\u09bf\u0995\u09cd\u09af\u09be\u09b2 \u09b2\u09be\u0997\u09c7 \u09a8\u09be, \u09b8\u09bf\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0 \u099f\u09cd\u09af\u09be\u0999\u09cd\u0995 \u09aa\u09cd\u09b0\u09c7\u09b6\u09be\u09b0 \u099c\u09c7\u099f \u09a6\u09bf\u09af\u09bc\u09c7 \u09aa\u09b0\u09bf\u09b7\u09cd\u0995\u09be\u09b0 \u0995\u09b0\u09be \u09b9\u09af\u09bc\u0964 \u09aa\u09b0\u09bf\u09b7\u09cd\u0995\u09be\u09b0\u09c7\u09b0 \u09aa\u09b0 \u09a6\u09c1\u0987 \u09a7\u09b0\u09a8\u09c7\u09b0 \u099f\u09cd\u09af\u09be\u0999\u09cd\u0995\u09c7\u0987 H2O2 \u0985\u09cd\u09af\u09be\u09a8\u09cd\u099f\u09bf-\u09ac\u09cd\u09af\u09be\u0995\u099f\u09c7\u09b0\u09bf\u09af\u09bc\u09be\u09b2 \u09b8\u09cd\u09aa\u09cd\u09b0\u09c7 \u0986\u09b0 UV-\u09b0\u09c7 (UV \u09b2\u09cd\u09af\u09be\u09ae\u09cd\u09aa \u099f\u09be\u0987\u09aa-C) \u09a6\u09bf\u09af\u09bc\u09c7 \u099c\u09c0\u09ac\u09be\u09a3\u09c1\u09ae\u09c1\u0995\u09cd\u09a4 \u0995\u09b0\u09be \u09b9\u09af\u09bc\u0964 \u09aa\u09cd\u09b0\u09a4\u09bf \u09ec \u09ae\u09be\u09b8\u09c7 \u098f\u0995\u09ac\u09be\u09b0 \u09aa\u09b0\u09bf\u09b7\u09cd\u0995\u09be\u09b0 \u0995\u09b0\u09be\u09a8, \u09aa\u09b0\u09bf\u09ac\u09be\u09b0\u09c7\u09b0 \u09b8\u09c1\u09b8\u09cd\u09a5\u09a4\u09be\u09b0 \u099c\u09a8\u09cd\u09af\u0964<\/div>\n\n\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/#Table_of_Contents\" >Table of Contents<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/#Is_your_water_tank_plastic_PVC_or_cement_RCC\" >Is your water tank plastic (PVC) or cement (RCC)?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/#What_builds_up_inside_a_plastic_PVC_tank\" >What builds up inside a plastic (PVC) tank?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/#What_builds_up_inside_a_cement_RCC_tank\" >What builds up inside a cement (RCC) tank?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/#Why_is_a_chemical_used_in_a_plastic_PVC_tank_but_not_in_a_cement_tank\" >Why is a chemical used in a plastic (PVC) tank but not in a cement tank?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/#What_is_the_same_for_every_tank\" >What is the same for every tank?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/#PVC_vs_cement_tank_cleaning_what_are_the_2_key_differences\" >PVC vs cement tank cleaning: what are the 2 key differences?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/#How_often_should_you_get_Sintex_tank_cleaning_done\" >How often should you get Sintex tank cleaning done?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/#Frequently_asked_questions\" >Frequently asked questions<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/#Is_Sintex_tank_cleaning_different_from_cement_tank_cleaning\" >Is Sintex tank cleaning different from cement tank cleaning?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/#How_long_does_Sintex_tank_cleaning_take\" >How long does Sintex tank cleaning take?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/#How_often_should_I_clean_a_plastic_PVC_or_cement_water_tank\" >How often should I clean a plastic (PVC) or cement water tank?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/#Do_you_clean_both_plastic_PVC_and_cement_tanks_in_Kolkata_and_Howrah\" >Do you clean both plastic (PVC) and cement tanks in Kolkata and Howrah?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/#Which_water_tank_is_best_for_home_plastic_or_cement\" >Which water tank is best for home, plastic or cement?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/#Festival_Water_Care_series_all_parts\" >Festival Water Care series: all parts<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Table_of_Contents\"><\/span>Table of Contents<span class=\"ez-toc-section-end\"><\/span><\/h2><nav><ul><li><a href=\"#tank-type\">Is your water tank plastic (PVC) or cement (RCC)?<\/a><\/li><li><a href=\"#pvc-dirt\">What builds up inside a plastic (PVC) tank?<\/a><\/li><li><a href=\"#rcc-dirt\">What builds up inside a cement (RCC) tank?<\/a><\/li><li><a href=\"#chemical\">Why is a chemical used in a plastic (PVC) tank but not in a cement tank?<\/a><\/li><li><a href=\"#same-for-all\">What is the same for every tank?<\/a><\/li><li><a href=\"#compare\">PVC vs cement tank cleaning: what are the 2 key differences?<\/a><\/li><li><a href=\"#how-often\">How often should you get Sintex tank cleaning done?<\/a><\/li><li><a href=\"#faq\">Frequently asked questions<\/a><ul><li><a href=\"#faq-1\">Is Sintex tank cleaning different from cement tank cleaning?<\/a><\/li><li><a href=\"#faq-2\">How long does Sintex tank cleaning take?<\/a><\/li><li><a href=\"#faq-3\">How often should I clean a plastic (PVC) or cement water tank?<\/a><\/li><li><a href=\"#faq-4\">Do you clean both plastic (PVC) and cement tanks in Kolkata and Howrah?<\/a><\/li><li><a href=\"#faq-5\">Which water tank is best for home, plastic or cement?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">From the outside, a water tank is just a water tank. But inside, a plastic (PVC) tank and a cement tank collect dirt in very different ways. That is why a proper clean is not the same for both. Here is what changes, what stays the same, and what it means for your family&#8217;s water.<\/p>\n\n\n\n<h2 id=\"tank-type\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Is_your_water_tank_plastic_PVC_or_cement_RCC\"><\/span>Is your water tank plastic (PVC) or cement (RCC)?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Most homes in Kolkata and Howrah have one of these two kinds of tank. Many buildings have both.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PVC simply means a plastic tank.<\/strong> Sintex is the name of a well-known company that makes these tanks, so in Kolkata many people call any plastic water tank a &#8220;Sintex tank&#8221;, whatever the brand. In this post, a &#8220;Sintex tank&#8221; just means a plastic PVC tank. SRS is an independent cleaning service and cleans plastic tanks of every brand.<\/p>\n\n\n\n<div style=\"overflow-x:auto;margin:18px 0\"><table style=\"width:100%;border-collapse:collapse;font-size:15px;background:#fff;border:1px solid #DEEDEB\"><thead><tr><th style=\"background:#EDF8F7;color:#007667;text-align:left;padding:10px 12px;border-bottom:1px solid #DEEDEB\"><\/th><th style=\"background:#EDF8F7;color:#007667;text-align:left;padding:10px 12px;border-bottom:1px solid #DEEDEB\">PVC (plastic) tank<\/th><th style=\"background:#EDF8F7;color:#007667;text-align:left;padding:10px 12px;border-bottom:1px solid #DEEDEB\">Cement (RCC) tank<\/th><\/tr><\/thead><tbody><tr><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top;font-weight:700;color:#0f3d37\">Made of<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Plastic, moulded in one piece<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Concrete with steel rods inside. RCC means Reinforced Cement Concrete.<\/td><\/tr><tr><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top;font-weight:700;color:#0f3d37\">Where you usually see it<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">On the roof of a house or a small building<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Underground reservoirs, and built-in roof tanks in many apartments<\/td><\/tr><tr><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top;font-weight:700;color:#0f3d37\">Shape<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Round, with rings on the walls<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">A square or rectangular room<\/td><\/tr><\/tbody><\/table><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">A house in Behala may have a plastic (PVC) tank on the roof. An apartment block in Salt Lake or Howrah often has a cement underground reservoir as well. If you are not sure what you have, that is fine. Just tell us when you book.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"1350\" src=\"https:\/\/srsfms.in\/blog\/wp-content\/uploads\/2026\/11\/pvc-sintex-tank-before-after-cleaning-srs-kolkata.webp\" alt=\"Sintex tank cleaning in Kolkata: plastic PVC water tank before and after cleaning by SRS\" class=\"wp-image-53\" srcset=\"https:\/\/srsfms.in\/blog\/wp-content\/uploads\/2026\/11\/pvc-sintex-tank-before-after-cleaning-srs-kolkata.webp 1080w, https:\/\/srsfms.in\/blog\/wp-content\/uploads\/2026\/11\/pvc-sintex-tank-before-after-cleaning-srs-kolkata-240x300.webp 240w, https:\/\/srsfms.in\/blog\/wp-content\/uploads\/2026\/11\/pvc-sintex-tank-before-after-cleaning-srs-kolkata-819x1024.webp 819w, https:\/\/srsfms.in\/blog\/wp-content\/uploads\/2026\/11\/pvc-sintex-tank-before-after-cleaning-srs-kolkata-768x960.webp 768w\" sizes=\"auto, (max-width: 1080px) 100vw, 1080px\" \/><figcaption class=\"wp-element-caption\">A real plastic (PVC) tank before (top) and after (bottom) cleaning by SRS.<\/figcaption><\/figure>\n\n\n\n<h2 id=\"pvc-dirt\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_builds_up_inside_a_plastic_PVC_tank\"><\/span>What builds up inside a plastic (PVC) tank?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The water that fills your tank carries tiny bits of iron and sediment. In a plastic tank, these slowly stick to the walls. Over the months they form a brown or yellow layer, like the one in the photo above.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In plastic tanks, this iron and sediment layer builds up quickly, and it can become thick. Over time, small cracks form in the layer. Germs and bacteria can grow inside these cracks, where the water keeps touching them every day. That is why a plastic tank should not be left for long without a proper clean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This layer holds on to the plastic. So during Sintex tank cleaning, a cleaning chemical is used to loosen it. Once it is loose, high-pressure cleaning and an industrial vacuum take it out.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"1350\" src=\"https:\/\/srsfms.in\/blog\/wp-content\/uploads\/2026\/11\/rcc-cement-tank-before-after-cleaning-srs-kolkata.webp\" alt=\"Cement RCC underground water tank before and after cleaning by SRS in Kolkata: sludge and sand removed\" class=\"wp-image-52\" srcset=\"https:\/\/srsfms.in\/blog\/wp-content\/uploads\/2026\/11\/rcc-cement-tank-before-after-cleaning-srs-kolkata.webp 1080w, https:\/\/srsfms.in\/blog\/wp-content\/uploads\/2026\/11\/rcc-cement-tank-before-after-cleaning-srs-kolkata-240x300.webp 240w, https:\/\/srsfms.in\/blog\/wp-content\/uploads\/2026\/11\/rcc-cement-tank-before-after-cleaning-srs-kolkata-819x1024.webp 819w, https:\/\/srsfms.in\/blog\/wp-content\/uploads\/2026\/11\/rcc-cement-tank-before-after-cleaning-srs-kolkata-768x960.webp 768w\" sizes=\"auto, (max-width: 1080px) 100vw, 1080px\" \/><figcaption class=\"wp-element-caption\">A real cement underground tank before (top) and after (bottom) cleaning by SRS.<\/figcaption><\/figure>\n\n\n\n<h2 id=\"rcc-dirt\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_builds_up_inside_a_cement_RCC_tank\"><\/span>What builds up inside a cement (RCC) tank?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In a cement tank, most of the dirt sinks to the floor. It settles as sludge, sand and mud. Underground reservoirs collect the most, especially after the monsoon. Green algae and slime can also grow on the walls near the lid.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This dirt is removed with pumps, sludge removal, high-pressure cleaning and vacuum cleaning. A cement tank does not need the extra chemical step. To learn more, read our post on <a href=\"https:\/\/srsfms.in\/blog\/underground-reservoir-cleaning-after-monsoon-kolkata\/\">underground reservoir cleaning after the monsoon<\/a>.<\/p>\n\n\n\n<h2 id=\"chemical\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_is_a_chemical_used_in_a_plastic_PVC_tank_but_not_in_a_cement_tank\"><\/span>Why is a chemical used in a plastic (PVC) tank but not in a cement tank?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">It comes down to the kind of dirt. In PVC tanks, a cleaning chemical is used during cleaning to loosen the iron and sediment layer stuck to the walls. Cement (RCC) tanks do not need this chemical, because their dirt mostly lies on the floor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So the method is matched to your tank. When you book, tell us if your tank is plastic (PVC) or cement, and our team will come ready for it.<\/p>\n\n\n\n<h2 id=\"same-for-all\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_the_same_for_every_tank\"><\/span>What is the same for every tank?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Whatever your tank is made of, SRS follows the same 6-stage mechanized process:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Mechanized de-watering<\/strong>: the water is pumped out.<\/li>\n\n\n\n<li><strong>Sludge removal<\/strong>: the settled sludge on the floor is sucked out.<\/li>\n\n\n\n<li><strong>High-pressure cleaning<\/strong>: jet cleaners strip deposits, algae and slime off the walls.<\/li>\n\n\n\n<li><strong>Vacuum cleaning<\/strong>: an industrial vacuum removes the loosened dirt.<\/li>\n\n\n\n<li><strong>Anti-bacterial treatment<\/strong>: walls and ceiling are sprayed with hydrogen peroxide (H2O2).<\/li>\n\n\n\n<li><strong>UV radiation sterilization<\/strong>: UV light from a UV-C lamp kills the bacteria still left in the tank.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Every tank, PVC or cement, gets the H2O2 anti-bacterial spray after cleaning, and then UV sterilization with a UV-C lamp.<\/p>\n\n\n\n<h2 id=\"compare\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PVC_vs_cement_tank_cleaning_what_are_the_2_key_differences\"><\/span>PVC vs cement tank cleaning: what are the 2 key differences?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">There are 2 key differences: the kind of dirt, and whether a cleaning chemical is needed. Everything else is the same.<\/p>\n\n\n\n<div style=\"overflow-x:auto;margin:18px 0\"><table style=\"width:100%;border-collapse:collapse;font-size:15px;background:#fff;border:1px solid #DEEDEB\"><thead><tr><th style=\"background:#EDF8F7;color:#007667;text-align:left;padding:10px 12px;border-bottom:1px solid #DEEDEB\"><\/th><th style=\"background:#EDF8F7;color:#007667;text-align:left;padding:10px 12px;border-bottom:1px solid #DEEDEB\">PVC (plastic) tank<\/th><th style=\"background:#EDF8F7;color:#007667;text-align:left;padding:10px 12px;border-bottom:1px solid #DEEDEB\">Cement (RCC) tank<\/th><\/tr><\/thead><tbody><tr><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top;font-weight:700;color:#0f3d37\">Main dirt<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Iron and sediment layer stuck to the walls<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Sludge, sand and mud on the floor; algae near the lid<\/td><\/tr><tr><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top;font-weight:700;color:#0f3d37\">How fast iron builds up<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Quickly, as a thick layer that can crack<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Comparatively less<\/td><\/tr><tr><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top;font-weight:700;color:#0f3d37\">Cleaning chemical to loosen dirt<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Yes<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Not needed<\/td><\/tr><tr><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top;font-weight:700;color:#0f3d37\">H2O2 anti-bacterial spray<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Yes<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Yes<\/td><\/tr><tr><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top;font-weight:700;color:#0f3d37\">UV-C sterilization<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Yes<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Yes<\/td><\/tr><tr><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top;font-weight:700;color:#0f3d37\">How often to clean<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Every 6 months<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">Every 6 months<\/td><\/tr><tr><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top;font-weight:700;color:#0f3d37\">Usual time<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">40 to 60 minutes for an overhead tank up to 2,000 litres<\/td><td style=\"padding:10px 12px;border-bottom:1px solid #DEEDEB;vertical-align:top\">40 to 60 minutes for an overhead tank up to 2,000 litres; about 1 to 1.5 hours for an underground tank<\/td><\/tr><\/tbody><\/table><\/div>\n\n\n\n<h2 id=\"how-often\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_often_should_you_get_Sintex_tank_cleaning_done\"><\/span>How often should you get Sintex tank cleaning done?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Every 6 months, for both plastic (PVC) and cement tanks. Kolkata&#8217;s humid weather helps dirt and germs build up faster. Read why in <a href=\"https:\/\/srsfms.in\/blog\/how-often-clean-water-tank-kolkata\/\">how often you should clean your water tank in Kolkata<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do not wait for the 6 months if you notice any of these:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Brown, yellow or muddy water from the taps<\/li>\n\n\n\n<li>Sand or rust in buckets or in your water purifier filter<\/li>\n\n\n\n<li>A smell from the water<\/li>\n\n\n\n<li>A slimy feel on the tank walls near the lid<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A clean tank means peace of mind every time your child drinks a glass of water, or an elderly parent takes medicine with it.<\/p>\n\n\n\n<h2 id=\"faq\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Frequently_asked_questions\"><\/span>Frequently asked questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 id=\"faq-1\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Is_Sintex_tank_cleaning_different_from_cement_tank_cleaning\"><\/span>Is Sintex tank cleaning different from cement tank cleaning?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. In plastic (PVC) tanks, a cleaning chemical is used to loosen the iron and sediment layer stuck to the walls. Cement (RCC) tanks do not need it. After cleaning, every tank gets an H2O2 anti-bacterial spray and UV-C sterilization.<\/p>\n\n\n\n<h3 id=\"faq-2\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_long_does_Sintex_tank_cleaning_take\"><\/span>How long does Sintex tank cleaning take?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">An overhead tank of up to 2,000 litres, PVC or cement, usually takes 40 to 60 minutes. An underground tank usually takes about 1 to 1.5 hours.<\/p>\n\n\n\n<h3 id=\"faq-3\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_often_should_I_clean_a_plastic_PVC_or_cement_water_tank\"><\/span>How often should I clean a plastic (PVC) or cement water tank?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Every 6 months. Clean it sooner if the water looks muddy or yellow, smells, or you see sand in your buckets.<\/p>\n\n\n\n<h3 id=\"faq-4\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Do_you_clean_both_plastic_PVC_and_cement_tanks_in_Kolkata_and_Howrah\"><\/span>Do you clean both plastic (PVC) and cement tanks in Kolkata and Howrah?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. SRS &#8211; Water Tank Cleaning &amp; Solution cleans plastic (PVC) tanks of every brand and cement (RCC) tanks, overhead and underground, in homes, apartments and offices across Kolkata and Howrah.<\/p>\n\n\n\n<h3 id=\"faq-5\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Which_water_tank_is_best_for_home_plastic_or_cement\"><\/span>Which water tank is best for home, plastic or cement?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Both plastic (PVC) and cement tanks are used in homes across Kolkata and Howrah. From a cleaning point of view, a plastic tank builds up an iron and sediment layer quickly. The layer can become thick and crack, and germs can grow inside those cracks. A cement tank collects comparatively less iron, but sludge and sand settle on its floor. Whichever tank you have, clean it every 6 months. SRS cleans both.<\/p>\n\n\n\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Is Sintex tank cleaning different from cement tank cleaning?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. In plastic (PVC) tanks, a cleaning chemical is used to loosen the iron and sediment layer stuck to the walls. Cement (RCC) tanks do not need it. After cleaning, every tank gets an H2O2 anti-bacterial spray and UV-C sterilization.\"}},{\"@type\":\"Question\",\"name\":\"How long does Sintex tank cleaning take?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"An overhead tank of up to 2,000 litres, PVC or cement, usually takes 40 to 60 minutes. An underground tank usually takes about 1 to 1.5 hours.\"}},{\"@type\":\"Question\",\"name\":\"How often should I clean a plastic (PVC) or cement water tank?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Every 6 months. Clean it sooner if the water looks muddy or yellow, smells, or you see sand in your buckets.\"}},{\"@type\":\"Question\",\"name\":\"Do you clean both plastic (PVC) and cement tanks in Kolkata and Howrah?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. SRS - Water Tank Cleaning & Solution cleans plastic (PVC) tanks of every brand and cement (RCC) tanks, overhead and underground, in homes, apartments and offices across Kolkata and Howrah.\"}},{\"@type\":\"Question\",\"name\":\"Which water tank is best for home, plastic or cement?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Both plastic (PVC) and cement tanks are used in homes across Kolkata and Howrah. From a cleaning point of view, a plastic tank builds up an iron and sediment layer quickly. The layer can become thick and crack, and germs can grow inside those cracks. A cement tank collects comparatively less iron, but sludge and sand settle on its floor. Whichever tank you have, clean it every 6 months. SRS cleans both.\"}}]}<\/script>\n\n\n\n<p class=\"wp-block-paragraph\">Not sure if your tank is plastic (PVC) or cement? Send your area, tank type and size on WhatsApp at 9007718983. Our team handles Sintex tank cleaning and cement tank cleaning across Kolkata and Howrah.<\/p>\n\n\n\n<div style=\"background:#0f3d37;color:#fff;border-radius:14px;padding:22px 20px;margin:28px 0;text-align:center\">\n<p style=\"font-size:21px;font-weight:700;margin:0 0 6px;color:#fff\">Is your tank plastic (PVC) or cement? We clean both.<\/p>\n<p style=\"margin:0 0 14px;color:#EDF8F7\">Send your area, tank type and size on WhatsApp \u2014 most messages get a reply within 30 minutes.<\/p>\n<a href=\"https:\/\/wa.me\/919007718983?text=Hi%20SRS%2C%20I%20want%20to%20book%20underground%20reservoir%20cleaning\" style=\"display:inline-block;background:#25D366;color:#fff;font-weight:700;padding:11px 20px;border-radius:999px;text-decoration:none;margin:4px\" target=\"_blank\" rel=\"noopener\">Book on WhatsApp<\/a>\n<a href=\"https:\/\/wa.me\/919007718983?text=%E0%A6%A8%E0%A6%AE%E0%A6%B8%E0%A7%8D%E0%A6%95%E0%A6%BE%E0%A6%B0%20SRS\" style=\"display:inline-block;background:#25D366;color:#fff;font-weight:700;padding:11px 20px;border-radius:999px;text-decoration:none;margin:4px\" lang=\"bn\" target=\"_blank\" rel=\"noopener\">WhatsApp-\u098f \u09ac\u09c1\u0995 \u0995\u09b0\u09c1\u09a8<\/a>\n<a href=\"tel:+919007718983\" style=\"display:inline-block;background:#fff;color:#0f3d37;font-weight:700;padding:11px 20px;border-radius:999px;text-decoration:none;margin:4px\">Call now<\/a>\n<\/div>\n\n\n\n<div style=\"display:flex;flex-wrap:wrap;gap:12px;margin:24px 0\"><div style=\"flex:1;min-width:220px;background:#F0F6F5;border-radius:10px;padding:14px\"><span style=\"font-size:13px;color:#5f7d79\">\u25c0 Previous<\/span><br><a href=\"https:\/\/srsfms.in\/blog\/underground-reservoir-cleaning-after-monsoon-kolkata\/\"><strong>Underground Reservoir Cleaning After Monsoon: What Kolkata Homes Miss<\/strong><\/a><\/div><div style=\"flex:1;min-width:220px;background:#F0F6F5;border-radius:10px;padding:14px\"><span style=\"font-size:13px;color:#5f7d79\">Read next \u25b6<\/span><br><a href=\"https:\/\/srsfms.in\/blog\/water-tank-cleaning-before-diwali-kolkata\/\"><strong>Diwali Guests Coming? Light Up Your Home and Clean Your Water Tank First<\/strong><\/a><\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-border-color has-background is-layout-flow wp-block-group-is-layout-flow\" style=\"border-color:#DEEDEB;border-width:1px;border-radius:12px;background-color:#F6FBFA;margin-top:24px;padding-top:18px;padding-right:22px;padding-bottom:18px;padding-left:22px\">\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#007667;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.641), 19px);\"><span class=\"ez-toc-section\" id=\"Festival_Water_Care_series_all_parts\"><\/span>Festival Water Care series: all parts<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><a href=\"https:\/\/srsfms.in\/blog\/how-often-clean-water-tank-kolkata\/\">How Often Should You Clean Your Water Tank in Kolkata?<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/srsfms.in\/blog\/vijaya-dashami-water-tank-cleaning-kolkata\/\">This Dussehra, Defeat the 10 Hidden Enemies Inside Your Water Tank<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/srsfms.in\/blog\/underground-reservoir-cleaning-after-monsoon-kolkata\/\">Underground Reservoir Cleaning After Monsoon: What Kolkata Homes Miss<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/srsfms.in\/blog\/sintex-tank-cleaning-vs-cement-kolkata\/\">Plastic (PVC) vs Cement Tank: Why the Cleaning Method Is Different<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/srsfms.in\/blog\/water-tank-cleaning-before-diwali-kolkata\/\">Diwali Guests Coming? Light Up Your Home and Clean Your Water Tank First<\/a><\/li>\n\n\n\n<li>This Bhai Phonta, Protect Your Family&#8217;s Health with Safe Water <em>(coming soon)<\/em><\/li>\n\n\n\n<li>Chhath Puja and the Purity of Water: Start at Home <em>(coming soon)<\/em><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:14px\"><a href=\"https:\/\/srsfms.in\/blog\/\">See all articles \u2192<\/a><\/p>\n<\/div>\n\n\n\n<p style=\"font-size:15px;line-height:1.9\"><strong>Related services:<\/strong> <a href=\"https:\/\/srsfms.in\/home-tank-cleaning\/\">Residential Tank Cleaning \u2192<\/a> \u00b7 <a href=\"https:\/\/srsfms.in\/apartment-tank-cleaning\/\">Apartment Tank Cleaning \u2192<\/a> \u00b7 <a href=\"https:\/\/srsfms.in\/commercial-tank-cleaning\/#amc\">Commercial Tank Cleaning &amp; AMC \u2192<\/a> \u00b7 <a href=\"https:\/\/srsfms.in\/faq\/\">All FAQs \u2192<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Plastic (PVC) tanks, often called Sintex tanks, and cement tanks get dirty in different ways. See the 2 key differences, what every tank gets, and book on WhatsApp.<\/p>\n","protected":false},"author":1,"featured_media":60,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,1],"tags":[14,8,15,9,11,7],"class_list":["post-51","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-festival-water-care","category-blog","tag-algae","tag-kolkata","tag-slimy-layers","tag-tank-care-basics","tag-water-health","tag-water-tank-cleaning"],"_links":{"self":[{"href":"https:\/\/srsfms.in\/blog\/wp-json\/wp\/v2\/posts\/51","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/srsfms.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/srsfms.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/srsfms.in\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/srsfms.in\/blog\/wp-json\/wp\/v2\/comments?post=51"}],"version-history":[{"count":11,"href":"https:\/\/srsfms.in\/blog\/wp-json\/wp\/v2\/posts\/51\/revisions"}],"predecessor-version":[{"id":78,"href":"https:\/\/srsfms.in\/blog\/wp-json\/wp\/v2\/posts\/51\/revisions\/78"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/srsfms.in\/blog\/wp-json\/wp\/v2\/media\/60"}],"wp:attachment":[{"href":"https:\/\/srsfms.in\/blog\/wp-json\/wp\/v2\/media?parent=51"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/srsfms.in\/blog\/wp-json\/wp\/v2\/categories?post=51"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/srsfms.in\/blog\/wp-json\/wp\/v2\/tags?post=51"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}