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

Al Salmiyah is a densely populated apartment district in central Jeddah with mid rise blocks and shared communal tanks. Water travels through long shared pipes before reaching the tank, and every unit and floor adds particles to the flow. Because one tank serves dozens of units, cleaning must be coordinated across the entire building, and the sediment accumulates faster due to intensive use.
Coordination with all occupants of one building takes more time and planning than neighbourhoods with individual tanks, because stopping the supply affects many families simultaneously. For the method itself, see how we approach water tank cleaning.
Each residential building in Al Salmiyah has one or two rooftop tanks serving dozens of flats across multiple floors. Water moves slowly through the shared pipes, allowing particles to settle gradually before reaching the tank. The shared tank becomes a forced sediment basin for all this accumulated material, growing heavier year on year.
Dozens of families use water at different times and for different purposes: laundry, cooking, cleaning, bathing. This variation in use patterns means a variety of particle types accumulates on the tank floor: textile fibres, food matter, cleaning residues and minerals that settle into layers.
Nobody feels complete responsibility for a shared tank, so cleaning can be delayed for years. When it finally happens, the sediment layer is thick, compact and tightly bonded to the floor and walls, requiring extra care to remove without damage.
The district has very high residential density with mid rise apartment blocks, and shared rooftop tanks that serve dozens of residential units in each building.
The initial inspection reveals the depth and density of accumulated sediment on the floor, showing you how long the shared tank has been neglected and how much buildup has occurred.
Full drainage takes longer here because shared tanks are typically larger and deeper than private villa tanks, and the accumulated sediment is heavier.
Sediment removal from a shared tank floor is labour intensive because the layer is thick and heavily compressed from years of intensive use by many families.
Wall scrubbing requires extra effort because the brown oxide layer from rust and mineral scale may be thick and very firmly bonded, requiring specialised care not to damage the tank interior.
Disinfection must be thorough here because the large resident population means recontamination is possible quickly after cleaning if pathogens exist in the source water.
Inspection of the shared tank cover and connecting pipes checks for cracks or weak seals that could allow dust and insects to enter again, and assesses whether shared pipe maintenance is needed.
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.
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.
Al Salmiyah sits east of Palestine Street, which simplifies navigation to your building, and Al Salmiyah Mosque nearby provides a clear landmark reference for the team when pinpointing your apartment block.
We provide these in Al Salmiyah too, and more than one can share a single visit.