{"id":7351,"date":"2026-11-12T09:03:17","date_gmt":"2026-11-12T03:33:17","guid":{"rendered":"https:\/\/www.rentomojo.com\/blog\/?p=7351"},"modified":"2026-11-12T09:03:17","modified_gmt":"2026-11-12T03:33:17","slug":"ro-water-purifier-in-mumbai","status":"publish","type":"post","link":"https:\/\/www.rentomojo.com\/blog\/ro-water-purifier-in-mumbai\/","title":{"rendered":"RO Water Purifier in Mumbai: Do You Need One?"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Most Mumbai homes get BMC piped water supply. These households have low TDS; hence, the requirement for an RO is also low. Mumbai gets water from lake-fed sources; this is the reason why the amount of dissolved solids is not as high as in borewell water. However, the water is not completely clean. The water travels through old pipelines and is stored in unclean storage tanks. You need a UV+UF water purifier to handle the risk of germs in the water. An RO water purifier for Mumbai is needed when the TDS is high.\u00a0<\/span><\/p>\n<p><b>Key Takeaways\u00a0<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Mumbai\u2019s water is clean, but it travels through pipes that may not be clean.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Households on BMC-piped water supply do not need an RO.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Check your water; if TDS is under 500 mg\/L, you need a UV+UF. Over 500 mg\/, you need an RO with a TDS controller.\u00a0<\/span><\/li>\n<\/ul>\n<p><strong>Also Read: <a href=\"https:\/\/www.rentomojo.com\/blog\/rent-a-water-purifier-in-mumbai\/\">How to Rent Water Purifier in Mumbai: Monthly Plans &amp; Pricing<\/a><\/strong><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_68_1 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >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: #302d55;color:#302d55\" 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: #302d55;color:#302d55\" 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=\"#\" data-href=\"https:\/\/www.rentomojo.com\/blog\/ro-water-purifier-in-mumbai\/#Should_You_Skip_RO_Water_Purifier_in_Mumbai\" title=\"Should You Skip RO Water Purifier in Mumbai?\">Should You Skip RO Water Purifier in Mumbai?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"#\" data-href=\"https:\/\/www.rentomojo.com\/blog\/ro-water-purifier-in-mumbai\/#What_Do_RO_UV_and_UF_Water_Purifiers_Remove\" title=\"What Do RO, UV, and UF Water Purifiers Remove?\u00a0\">What Do RO, UV, and UF Water Purifiers Remove?\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"#\" data-href=\"https:\/\/www.rentomojo.com\/blog\/ro-water-purifier-in-mumbai\/#How_to_Choose_a_Water_Purifier_for_Your_Home_in_Mumbai\" title=\"How to Choose a Water Purifier for Your Home in Mumbai\u00a0\">How to Choose a Water Purifier for Your Home in Mumbai\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"#\" data-href=\"https:\/\/www.rentomojo.com\/blog\/ro-water-purifier-in-mumbai\/#How_Do_You_Choose_an_RO_Water_Purifier_for_Home_with_High_TDS\" title=\"How Do You Choose an RO Water Purifier for Home with High TDS?\u00a0\">How Do You Choose an RO Water Purifier for Home with High TDS?\u00a0<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"#\" data-href=\"https:\/\/www.rentomojo.com\/blog\/ro-water-purifier-in-mumbai\/#What_TDS_Should_RO_Water_Have\" title=\"What TDS Should RO Water Have?\u00a0\">What TDS Should RO Water Have?\u00a0<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"#\" data-href=\"https:\/\/www.rentomojo.com\/blog\/ro-water-purifier-in-mumbai\/#Does_RO_waste_increase_your_water_bill\" title=\"Does RO waste increase your water bill?\u00a0\">Does RO waste increase your water bill?\u00a0<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"#\" data-href=\"https:\/\/www.rentomojo.com\/blog\/ro-water-purifier-in-mumbai\/#Which_Rentomojo_Water_Purifier_is_Suitable_for_Your_Mumbai_Home\" title=\"Which Rentomojo Water Purifier is Suitable for Your Mumbai Home?\u00a0\">Which Rentomojo Water Purifier is Suitable for Your Mumbai Home?\u00a0<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Should_You_Skip_RO_Water_Purifier_in_Mumbai\"><\/span><b>Should You Skip RO Water Purifier in Mumbai?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">For most households, yes. BMC supplies around 4,000 million litres every day. The sources are rain-fed lakes such as Bhatsa and the Vaitarna reservoirs. The water is treated at the Panjrapur and Bhandup plants. Lake water does not pick up a large amount of dissolved salts \u2013 only a few minerals. RO membranes are designed to remove the dissolved salts.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">BMC tested the water, and only 0.99% of samples were found unfit for drinking in 2022-23. It was 0.46% for a couple of years and dropped to 0.28% in 2025-26. In 2025-26, fewer than 3 in 1,000 BMC samples failed in 2025-26.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In the last eight months of 2026, BMC received 1,514 contaminated water complaints, which were directed towards leaking connections. The complaints were linked to \u201cpassing through drains, house gullies and marshy soil.\u201d Some samples fared worse than the city average. That\u2019s why bacteria, cysts, viruses, and mud are what UV and UF water purifiers are designed for.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Do_RO_UV_and_UF_Water_Purifiers_Remove\"><\/span><b>What Do RO, UV, and UF Water Purifiers Remove?\u00a0<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">RO water purifiers remove dissolved salts, and UV and UF water purifiers shield against germs and sediment.\u00a0<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<b>Details\u00a0<\/b><\/td>\n<td><b>UV<\/b><\/td>\n<td><b>UF<\/b><\/td>\n<td>\n<b>RO<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Bacteria and viruses<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Inactivates<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Removes bacteria; partial on viruses<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Removes<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Cysts, mud, turbidity<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Inactivates cysts; needs clear water<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Removes<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Removes<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Dissolved salts (TDS)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">No<\/span><\/td>\n<td><span style=\"font-weight: 400;\">No<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Removes<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Water wasted<\/span><\/td>\n<td><span style=\"font-weight: 400;\">None<\/span><\/td>\n<td><span style=\"font-weight: 400;\">None<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Reject stream<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Choose_a_Water_Purifier_for_Your_Home_in_Mumbai\"><\/span><b>How to Choose a Water Purifier for Your Home in Mumbai\u00a0<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">You need to choose a water purifier after considering what\u2019s in your water. The multi-stage filters printed on the box come later.\u00a0<\/span><\/p>\n<p><b>1. Test the TDS: <\/b><span>You can get a handheld TDS meter and use the meter for your water. Dip the meter and see the reading. This will tell you whether your building is on BMC, borewell, or tanker water.\u00a0<\/span><\/p>\n<p><b>2. Match the technology to the reading: <\/b><span>High TDS calls for an RO; low TDS works out well with a UV or UF purifier.\u00a0<\/span><\/p>\n<p><b>3. Check for the BIS mark: <\/b><span>If you need an RO purifier, ensure it meets IS 16240:2023.\u00a0<\/span><\/p>\n<p><b>4. Check servicing: <\/b><span>UV lamps and UF membranes need to be replaced on schedule.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Your TDS reading<\/b><\/td>\n<td><b>Likely source<\/b><\/td>\n<td><b>What to choose<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Under 500 mg\/L<\/span><\/td>\n<td><span style=\"font-weight: 400;\">BMC supply<\/span><\/td>\n<td><span style=\"font-weight: 400;\">UV+UF, plus activated carbon if chlorine taste bothers you<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">500 to 2,000 mg\/L<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Borewell, tanker or mixed<\/span><\/td>\n<td><span style=\"font-weight: 400;\">RO+UV with a TDS controller<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Over 2,000 mg\/L<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Poor groundwater<\/span><\/td>\n<td><span style=\"font-weight: 400;\">RO+UV, and get a lab test<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"How_Do_You_Choose_an_RO_Water_Purifier_for_Home_with_High_TDS\"><\/span><b>How Do You Choose an RO Water Purifier for Home with High TDS?\u00a0<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">If your reading is above 200 mg\/L, you need a high TDS water purifier. Three checks separate the best RO for high TDS from the rest.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">You need to read the label for the recovery rate. Since December 2023, IS 16240:2023, domestic RO purifiers need to recover at least 40% of water. That\u2019s why you will see a \u2018rated recovery\u2019 on the water purifier boxes. Even when the recovery rate is 40%, the purifier can send up to 1.5L down the drain for each litre you drink. Old RO units send around 4L.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">If you can, check the reject water per litre purified. Then you can calculate from BIS recovery rates.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Then you should get a TDS controller or mineraliser when dealing with high TDS water. If you do not get one, the RO membrane can strip out every mineral.\u00a0<\/span><\/p>\n<p><strong>Also Read: <a href=\"https:\/\/www.rentomojo.com\/blog\/tds-level-in-water-purifier\/\">TDS Levels In Water Purifier: What Is The Ideal Range?<\/a><\/strong><\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_TDS_Should_RO_Water_Have\"><\/span><b>What TDS Should RO Water Have?\u00a0<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">There is no exact minimum TDS for RO water. According to IS 10500, acceptable TDS in drinking water can be 500 mg\/L. So, your goal should not be to look for zero TDS. You can get a unit with a TDS controller to balance the minerals.\u00a0<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Does_RO_waste_increase_your_water_bill\"><\/span><b>Does RO waste increase your water bill?\u00a0<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">Not really. BMC charges residential buildings about \u20b96 per 1,000 litres. For a family using 15L of purified water a day, a unit with a 40% recovery rate discards about 8,200L a year. This nearly costs \u20b950.\u00a0<\/span><\/p>\n<p><strong>Also Read: <a href=\"https:\/\/www.rentomojo.com\/blog\/ro-water-for-hair-wash\/\">RO Water For Hair Wash: Is It A Good Idea?<\/a><\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Which_Rentomojo_Water_Purifier_is_Suitable_for_Your_Mumbai_Home\"><\/span><b>Which Rentomojo Water Purifier is Suitable for Your Mumbai Home?\u00a0<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">You should choose a model whose rated input TDS covers your reading. Rentomojo\u2019s UV+UF unit is rated for water under 200 mg\/L, even though BIS accepts up to 500. A tap reading of 300 is drinkable, but you need an RO with a TDS controller to retain minerals.\u00a0<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Your reading<\/b><\/td>\n<td><b>Rentomojo\u2019s water purifier<\/b><\/td>\n<td><b>Technology and tank<\/b><\/td>\n<td><b>Rated input TDS<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Under 200 mg\/L<\/span><\/td>\n<td><a href=\"https:\/\/www.rentomojo.com\/mumbai\/appliances\/rent-nirapure-uv-uf-water-purifer-non-ro\/153034?utm_source=organic&amp;utm_medium=blog&amp;utm_campaign=ro_water_purifier_for_mumbai_1\"><span style=\"font-weight: 400;\">Nirapure UV+UF (Non-RO)<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">UV+UF+minerals, 7 L<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Under 200<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">200 to 2,000 mg\/L<\/span><\/td>\n<td><a href=\"https:\/\/www.rentomojo.com\/mumbai\/appliances\/rent-driftgo-7-stage-water-purifier\/136676?utm_source=organic&amp;utm_medium=blog&amp;utm_campaign=ro_water_purifier_for_mumbai_2\"><span style=\"font-weight: 400;\">DriftGo 7 Stage<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">RO+UV+UF+minerals, 7 L<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Up to 2,000<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">200 to 2,000 mg\/L, bigger tank<\/span><\/td>\n<td><a href=\"https:\/\/www.rentomojo.com\/mumbai\/appliances\/rent-driftpro-7-stage-water-purifier\/132286?utm_source=organic&amp;utm_medium=blog&amp;utm_campaign=ro_water_purifier_for_mumbai_3\"><span style=\"font-weight: 400;\">DriftPro 7 Stage<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">RO+UV+UF+alkaline+copper, 8.5 L<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Up to 2,000<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Up to 1,500 mg\/L, doubtful tank water<\/span><\/td>\n<td><a href=\"https:\/\/www.rentomojo.com\/mumbai\/appliances\/rent-rm-premium-water-purifier-ro-uf-in-tank-uv-led-6l\/127037?utm_source=organic&amp;utm_medium=blog&amp;utm_campaign=ro_water_purifier_for_mumbai_4\"><span style=\"font-weight: 400;\">RM Premium<\/span><\/a><span style=\"font-weight: 400;\">\u00a0\u00a0<\/span><\/td>\n<td><span style=\"font-weight: 400;\">RO+UF+in-tank UV+mineral enhancer, 6 L<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Up to 1,500<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">200 to 2,000 mg\/L, lowest stated waste<\/span><\/td>\n<td><a href=\"https:\/\/www.rentomojo.com\/mumbai\/appliances\/rent-driftlux-7-stage-water-purifier\/132303?utm_source=organic&amp;utm_medium=blog&amp;utm_campaign=ro_water_purifier_for_mumbai_5\"><span style=\"font-weight: 400;\">DriftLux 7 Stage<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">RO+UV+UF+alkaline+copper, hot water, 8.5 L<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Up to 2,000<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">If you look, DriftLux has a 40% recovery rate. Rentomojo adds delivery and installation with each delivery. The in-house technician checks the TDS before and after installing the water purifier. Rentomojo includes free filter changes and maintenance for its own line of purifiers. Browse <\/span><a href=\"https:\/\/www.rentomojo.com\/mumbai\/appliances\/water-purifiers-on-rent?utm_source=organic&amp;utm_medium=blog&amp;utm_campaign=ro_water_purifier_for_mumbai_6\"><span style=\"font-weight: 400;\">water purifiers on rent in Mumbai<\/span><\/a><span style=\"font-weight: 400;\"> and compare to see which one is suitable for your household.\u00a0<\/span><\/p>\n<p><strong>Also Read: <a href=\"https:\/\/www.rentomojo.com\/blog\/is-mumbai-tap-water-safe-to-drink\/\">Is Mumbai Tap Water Safe to Drink? Know What It Contains<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Most Mumbai homes get BMC piped water supply. These households have low TDS; hence, the requirement for an RO is also low. Mumbai gets water&#8230;<\/p>\n","protected":false},"author":22,"featured_media":7352,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false},"categories":[267],"tags":[2890],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.2 (Yoast SEO v21.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>RO Water Purifier in Mumbai: Do You Need One? | RentoMojo<\/title>\n<meta name=\"description\" content=\"Do you need an RO water purifier in Mumbai? Most BMC homes don\u2019t. 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