Underground Sump Cleaning: Cost & Safety
Raj Babbar · 9 min read
Home › Water Tank Cleaning › Sintex / Plastic Tank Cleaning › Dwarka Sector 16
Sintex & plastic tank cleaning in Dwarka Sector 16 — a plastic-safe soft wash that clears algae from the sector’s CGHS and school-campus tanks. From ₹699.
Dwarka Sector 16 has a quieter, campus-like feel, with CGHS societies sitting among schools and large institutional plots rather than dense market rows. Homes here run on rooftop overhead tanks paired with underground sumps, and most of those tanks are Sintex or plastic. Because the translucent walls let daylight pass straight through, algae takes hold inside far quicker than it would in an opaque concrete tank. Add Dwarka’s hard, high-TDS 50-50 Sonia Vihar DJB and DDA borewell supply, and a green film can form within weeks.
Residents across the sector’s pockets book us for a plastic-safe soft wash that clears algae without ever risking the tank wall. If you are comparing options, our full guide to water tank cleaning in Dwarka Sector 16 walks through the drain, scoop, soft-jet and disinfect steps. Every job ends with dated photos and a sanitation certificate. Overhead tanks and underground sumps are both covered in a single visit.
The single biggest reason is light. A Sintex or plastic wall is translucent, so sunlight reaches the water inside and feeds algae the way it never could in a sealed concrete tank. On Sector 16’s open, low-rise rooftops there is little shade, so overhead tanks bake in the sun all day and bloom green quickly. Underground sumps escape the light but trap slimy biofilm and fine borewell sediment instead.
Our crew drains the tank, scoops out the slimy sediment by hand, then soft jet washes at a plastic-safe pressure that lifts algae without gouging or cracking the wall. Stubborn film is hand-scrubbed with soft pads, never wire brushes that would score the plastic and give new algae a foothold. We finish with a food-grade disinfectant, reseat the lid and check the overflow so stray light and dust cannot restart the cycle. You get before-and-after photos and a certificate before we pack up.
No travel charge anywhere in Dwarka Sector 16. 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 Dwarka Sector 16 — and there’s no travel charge to any of them:
“Why does my Sintex tank in Sector 16 keep going green?” Green water is almost always algae, and Sintex or plastic tanks feed it because their translucent walls let sunlight reach the water. On Sector 16’s open rooftops there is little shade, so overhead tanks heat up and bloom within weeks. We clear the bloom with a soft wash and disinfectant, then reseat the lid so light stops feeding new growth. Keeping the tank fully covered between cleans slows it down a lot.
“Will your jet wash crack or damage my plastic tank?” No. We deliberately drop the pressure for Sintex and plastic tanks so the jet lifts algae and biofilm without gouging, thinning or cracking the wall. Any stubborn film is hand-scrubbed with soft pads rather than wire brushes, which would score the plastic and actually help algae grip. The method is designed around plastic-safe cleaning, so the tank comes out clean and structurally untouched.
“What does it cost to clean a 1000L Sintex tank in Sector 16?” A standard 1000L Sintex or plastic tank starts at ₹699, which covers draining, scooping, a soft plastic-safe wash, food-grade disinfection, photos and a certificate. Larger overhead tanks or an added underground sump are quoted on capacity before we begin, so there are no surprises. Many CGHS homes here get the rooftop overhead and the sump done together to save a second visit.
“There are black or dark particles in my water — what are they?” Dark specks are usually a mix of settled borewell sediment and detached biofilm flakes off the tank floor and walls. Dwarka’s hard, high-TDS water drops a lot of fine mineral silt, and once biofilm builds up it sheds dark bits into the supply. We scoop the sediment, soft-wash the walls and disinfect so the water runs clear again. A cover check on the lid and overflow keeps fresh dust out.
“Can you come the same day to the Sector 16 CGHS pockets?” Yes, same-day slots are usually available across the Sector 16 CGHS pockets and institutional plots when you call early. A single Sintex tank soft wash is a quick job, so we can often fit an overhead-plus-sump clean into one afternoon visit. If algae is heavy we allow extra scrubbing time, but you still get the same photos and certificate before we leave.
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 Dwarka Sector 16 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 food-grade 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.