Rooftop plastic tank
See a black, blue or white tank on your terrace? That’s an overhead tank — most Delhi flats have only this.
KaamGenieOverhead or underground?
Which tank does your Delhi home actually need cleaned — and what it costs.
Type 1
Type 2
Underground sump
A square concrete hatch in the courtyard means a sump — stores municipal water before it’s pumped up.
Safety
Sumps are confined spaces
Never DIY a sump — toxic gas is a real risk. Crews use a harness, gas meter and a standby person.
Kothis
Most kothis need both
Water flows sump to motor to rooftop. Clean just one and the other recontaminates it within days.
Best value
Combo cleaning: ₹2,500–3,000
Sump and overhead cleaned in one visit — cheaper than booking separately and cleans the whole water path.
Book now
Tank cleaning from ₹699
Overhead, sump or combo — trained, police-verified crew with photos and a dated record. Often same day.