Which Chemicals Are Used for Tank Cleaning?
Raj Babbar · 11 min read
Home › Water Tank Cleaning › Sintex / Plastic Tank Cleaning › GTB Nagar
Ever wondered why the water in your GTB Nagar PG smells faintly earthy by evening? The plastic Sintex tank on the roof, greening between its many daily refills, is usually to blame. KaamGenie cleans it gently and hygienically. From ₹699.
GTB Nagar borders the university and the Mukherjee Nagar coaching cluster, so it is thick with student PGs, hostels and rented builder floors clustered around a metro-served market. The shared overhead tanks feeding these dense blocks are mostly Sintex or plastic, and they cycle through many refills a day. Each refill on the DJB piped supply is fine going in, but the rooftop dust and the light passing through the translucent walls undo that quickly once the water is sitting inside. Rapid turnover keeps grime settling on the walls almost as fast as it is rinsed away, and the heat warms the water through the plastic to feed algae. High occupancy and absentee tenancy mean the lid stays loose and the tank stays unopened. So the film keeps building on the plastic even as the tank is used hard, and by evening a full day’s standing has given the water that faint off note.
Our plastic-safe clean resets that cycle: we check the tank and lid, drain it, scoop the slimy layer off the bottom, wet-vacuum the residue, jet-wash at a pressure set for plastic, hand-scrub the algae with soft pads and finish with an anti-bacterial disinfectant wash, with before-and-after photos to show the difference. If a whole GTB Nagar building needs its sump and RCC tank done alongside, our full water tank cleaning in GTB Nagar covers those. On this page we are dealing with Sintex and plastic tanks.
It comes down to what the plastic wall lets through. A Sintex tank on a GTB Nagar rooftop sits in full sun, and its translucent shell passes that light straight into the water, warming it and feeding algae and biofilm. A concrete tank stays dark and cool inside and holds off the green far longer. So even though these tanks are refilled constantly on clean DJB water, the light-and-warmth combination greens the plastic between fills in a way residents rarely connect to the tank itself.
The dense, transient occupancy does the rest. A tank feeding a packed PG block turns over many times a day, and the churn keeps fine sediment suspended while every refill draws rooftop dust in through the loose lid. Nobody among the coming-and-going tenants owns the tank, so it is never opened or wiped. The film and the stirred grime coat the walls steadily, and only a professional clean actually breaks that sediment cycle rather than just rinsing over it.
No travel charge anywhere in GTB Nagar. The final price is confirmed on the call before we come — it depends only on tank size and access.
See it done in 45 seconds
Watch our web story on how a tank is really cleaned — drain, de-sludge, jet-wash, disinfect.
We reach every pocket of GTB Nagar — and there’s no travel charge to any of them:
Every locality in Delhi stores different water, and that decides how fast a tank fouls. This is GTB Nagar’s profile from The Delhi Water Index, built from our field observations across 250+ localities.
Indicative field characterisation, not a certified lab test. BIS IS 10500: TDS 500 mg/L acceptable, 2,000 permissible. Check any Delhi area →
“Why does the water smell fine in the morning but off by night?” Because the water sitting in the tank through the warm day is where the film grows. A fresh morning fill tastes clean, but by evening it has stood in a sun-warmed plastic tank all day picking up the algae note. Cleaning the tank removes the film that causes it, so the water stays clear later into the day.
“Our block shares one tank across several PG rooms, is that harder to clean?” Not harder, just used more, which is why it fouls quickly. We clean the shared tank the same plastic-safe way, and because it feeds many rooms it is well worth doing on a regular schedule. The building owner usually books it and confirms the supply timing so the crew has roof access.
“What is the price for a typical shared rooftop Sintex here?” A standard 1000L Sintex is ₹899 and a 500 litre one is ₹699. A larger 1000 to 2000 litre shared tank runs ₹1,299 to ₹1,499. If the building has several plastic tanks we give a bulk per-tank rate, so a full GTB Nagar block costs less per tank than a single booking.
“Do you seal the lid so the dust stops getting in?” Yes, we make sure the lid seats properly before we leave, because a loose cover is half the problem on these rooftops. A sealed lid keeps out the dust and insects that every refill would otherwise drag in, so the tank we hand back stays clear noticeably longer than one left open to the market air.
“Can you fit around our water-supply hours?” We plan the visit around your fill timing so the tank is not left empty when tenants need water. The drain-and-refill window is short, and we aim for a quieter stretch of the day. Booking on 95603 66362 lets us slot you into our regular GTB Nagar rounds at a convenient time.
See our complete water tank cleaning services in Delhi NCR — pricing, process, tank types and full city coverage.
Beyond water tank cleaning, KaamGenie is rolling out a full lineup of home services across Delhi NCR — see our complete list of 12 home services we offer or will be launching through 2026. New to tank cleaning? Read our guide on how to pick the right water tank cleaning service in Delhi — what to look for, what to avoid, and the questions that separate trustworthy crews from quick-job operators.
Rooftop plastic tanks
₹699+ →Kothi sumps & underground tanks
₹1,499+ →Apartments & RWAs
Bulk pricing →FSSAI-compliant cleaning
₹2,500+ →टंकी साफ़ करने वाले
हिन्दी पढ़ें →View all water tank cleaning guides →
All pockets and lanes of GTB Nagar covered. If your specific block or society isn’t named in the sub-areas above, just call — we almost certainly cover it.
Same crew, same 6-step process, same-day where possible. Pick any locality below for local pricing and the tanks we typically find there.
Book a slot — we can usually fit you in today or tomorrow.