The right gear for drinking water
Pumps to clear sludge, scrubbing to remove biofilm, and disinfectant meant for potable storage.

In Al Noor, tanks serve shops at street level and homes above them on the same system, where sediment settles unevenly and biofilm grows in patches. Mixed use means varied contaminants that require full drainage, manual scrubbing of every wall and corner, and thorough disinfection to clear oils and residues from both residential and commercial water flows.
Tanks here serve multiple floors and mixed purposes, with water flowing down through a single line and back up through different circuits, leaving sediment at every junction and low point. For the method itself, see how we approach water tank cleaning.
A single tank feeds both ground floor commercial use and upper floor residential use with different flow patterns and pressures. Water cycles back down when shops close, stirring settled sediment that then coats the walls. Every internal surface must be reached and disinfected separately.
The tank and pipework are new but heavy mixed usage creates conditions for algae and light oils to coat the interior quickly. Manual scrubbing of concrete or fibreglass walls must be thorough and repeated rinsing essential.
Abhor Mall and the district's parks mean continuous foot traffic and airborne dust entering through open loading doors and ventilation. Sediment builds faster than in purely residential areas.
A recently built district within Obhur Al Shamaliyah combining varied apartment sizes, modern villas and active shopping areas, with facilities like Abhor Mall and nearby parks.
When we open the tank in Al Noor we find sediment and green algae buildup, especially on walls below any small light opening where moisture and warmth meet.
Water is pumped out completely and the tank left bone dry before scrubbing begins, so no old water dilutes the disinfectant.
Sediment removal takes time because algae has bonded to the surface; we vacuum, rinse and vacuum again until the floor is clear.
Walls and corners are scrubbed by hand with stiff brushes, paying close attention to joints and edges where dust collects and biofilm anchors.
Disinfection covers every internal surface and is safe for drinking water, leaving no chemical taste or smell when the tank refills.
Final rinsing continues until water runs perfectly clear, then we check the lid seal and hinges before handing the tank back.
The supply into the tank is shut and the tank is drained completely.
The sludge on the floor is scooped and pumped out first.
The biofilm on the walls is physically scrubbed off.
With the walls and floor clean, a disinfectant made for drinking-water storage is applied and given time to act on every surface.
The disinfectant and any loosened residue are rinsed down and pumped out, so the first tank of water after us is not carrying it.
We check the cover seal and inlet before refilling, so dust and insects stay out, then start the refill while you watch it run clear.
Mixed district: shops at street level with homes above them
In a mixed district, the tank serves mixed purposes and must handle both residential and commercial water demand, with contaminants from both sources. Our coordination with both shop and residents together is necessary and built into the job.
Pumps to clear sludge, scrubbing to remove biofilm, and disinfectant meant for potable storage.
We send a team, not one person, so a tank is drained, cleaned, disinfected and refilled in a single visit rather than left open for days.
We look at the lid seal and inlet, because a tank that got dirty fast usually has a way in.
Nothing is closed until the tank is refilling and you have seen the water run clean.
Photographs from real jobs carried out by the crew.












The commitment is simple enough to actually keep: we do not leave until the tank is disinfected, refilling, and you have seen it for yourself.
We access the tank through the area served by Abhor Mall where shops are fronted, coordinating through site management. The tank usually sits on the roof near Al Iman Park, and the route to it is straightforward and safe.
We provide these in Al Noor too, and more than one can share a single visit.