Water tank cleaning in Sharai, Makkah

Potable-rated materials

Linings and disinfectants cleared for drinking water tanks, not general-purpose products.
You get the downtime first

How many hours the tank is out of service, told before we start rather than after we finish.
A first-draw flush

We run the first draw off after refilling, and the tank is not handed back until the water runs clear.
Ground and roof tanks

Villas, apartment blocks and premises that need a written record of each visit.

Why the job is different in Sharai

Shared tanks between shops and flats undergo dramatic consumption swings: ground floor shops drain the tank fast in daytime hours, then consumption stops almost entirely after dark as shops close. The method is set out in full on the full Water tank cleaning page.

The first reason

Shops below and homes above mean variable pressure

A tank shared between a commercial unit and residential flats bears irregular consumption. The shop empties the tank quickly during business hours, then consumption drops sharply at night. This swinging pressure stirs the settled sludge at the bottom, lifting it and letting it sink again in layers. Each swing redistributes the sediment, speeding its compaction and increasing how often the tank must be cleaned to stay clear.

The second reason

Proximity to the Haram boundary means extreme density

Part of Sharai sits inside the Haram boundary where outward expansion stops, compressing the resident population into a fixed area. Tanks here serve far more people per square metre than suburban tanks. Sediment builds faster in high-use tanks, and the cleaning cycle shortens. A tank serving one building in an outlying area may go a year between cleanings; here, tanks may need attention in half that time.

The third reason

Seasonal wadis leave damp silt near the foundations

Wadi Al Sharai carries flash floods after rain then dries out, but the silt and moisture it deposits linger in the ground beneath buildings. This persistent damp near the tank foundation stresses the concrete, opening hairline cracks through which groundwater seeps. Water entering through these cracks carries soil and minerals that cloud the tank water. Deeper cleaning is needed to clear what seeps in.

Sharai on the map

Sharai sits about 1.5 km from Salam and about 2 km from Muad.

Open in Google Maps

Before treatment

The condition of the tank decides the method

The district lies on a regular street grid between a seasonal wadi that dries but leaves silt and damp, while the Haram boundary runs along its western edge where building density is at its highest.

Fine brown sediment beneath shallow water

The layer on the floor

The floor layer is thick here because the shared tank endures stop-start consumption that lifts sludge and drops it again in strata, each cycle adding to the deposit on the bottom.

Light and algae

Algae rarely grow because the tank is always covered, but bacteria multiply fast in the sludge that settles from pressure swings day after day.

A damp concrete wall carrying a dark deposit

The deposit on the wall

The walls carry a brown film from suspended sediment that drops from water under variable pressure, creating distinct rings as levels change.

A concrete surface with a fine hairline crack

The lining and hairline cracks

The lining and hairline cracks appear from the variable pressure on the walls and from changing load on the foundations as moisture lingers from the seasonal wadi nearby.

The lid of a water tank on a building roof

The lid and the access hatch

The lid and hatch are usually secure because the district is planned on a regular grid, but we inspect dust seals and insect barriers carefully each time.

A plastic pipe leaving the exterior wall of a building

The vent and the overflow pipe

The vent and overflow pipe need checking because pressure swings can weaken the joints, and a leak at the vent can siphon contaminated air into the tank.

How we work

1
Inspect before the drain

Tank type and material, the condition of the lining, the depth of the sediment, the lid and the vent, and where the drained water will go. We agree the window without supply before anything is opened.
2
Drain, then lift the sludge

The water leaves through the outlet, then the layer beneath it is taken out by hand and by suction. That layer is the reason for the visit, not the water that ran out ahead of it.
3
High pressure wash

Walls, floor and the joint where they meet, with a brush wherever the film resists, then the wash water is taken out completely so nothing we lifted settles again.
4
Disinfect and put back in service

Disinfectant over every internal surface, left for its contact time and then rinsed out, followed by the refill, a first draw off at the taps, and a report on what was inside the tank.

What water tank cleaning includes

An inspection before the valve

Tank type, lining condition, depth of sediment, lid and vent, recorded before any water leaves.
Full drain and sediment removal

The water through the outlet, and the layer below it by hand and by suction until the floor itself is showing.
Pressure washing walls and floor

High pressure across the surfaces and corners, and a brush on anything water alone will not lift.
Disinfection after the wash

A disinfectant intended for drinking water tanks, named to you before it is used, left for its contact time and then rinsed out.
Refill and the first draw off

We refill, run the taps so the new water moves through the pipework, and tell you when it is ready to use.
A report and the next date

What was inside the tank, anything on the lid or the lining that needs repair, and a sensible date for the next clean.

Landmarks of Sharai

Sharai extends between King Faisal Road on the east and Al Sharai Cemetery on the west, with shared tanks between shops and flats distributed across the regular street grid between the mosques and parks. We navigate by the planned street pattern that runs through the whole district.

King Faisal Road
Al Sharai Park
Al Sharai Cemetery
Al Sudais Mosque
Sheikh Yasin Khayyat Mosque
Engineer Omar Qadi Street

Questions about this district

Our tank is shared between the shop and the flats above. Does it need different cleaning?

Yes, distinctly. Shared tanks endure swinging pressure all day long as the shop opens and closes, and this motion stirs the settled layer that other tanks leave undisturbed. We focus on clearing the sludge that gets lifted and resettled repeatedly. We also inspect the shared pipework between shop and flats to spot any leak that might let contaminated water feed into the tank.

Do commercial shops below the tank increase bacteria inside it?

The shops themselves do not directly increase bacteria, but the stop-start consumption and pressure swings cause settled sludge where bacteria thrive. If the shop handles food or paints, even a tiny pipe leak can introduce contaminants into a shared tank through the connected pipework below ground.

Water from the upper flat is cloudy but the lower flat is clear. Why?

This happens in shared tanks when sludge settles unevenly across the tank base. The flat nearest the tank outlet gets clear water; the other takes water that may carry the settled layer. Thorough cleaning removes all sludge and rebalances the tank so both users get the same quality.

The Haram boundary runs past our building. Does it affect the tank?

The boundary itself does not affect water quality, but it signals extreme residential density. More people means faster water turnover in the tank and faster sediment buildup. Tanks in this part of Sharai may need cleaning more often than tanks in less dense areas, because consumption is simply higher.

The tank empties fast during business hours then consumption stops. Is this harmful?

Very harmful over time. Swinging pressure lifts settled sludge off the bottom and lets it sink again in new places. The tank accumulates sludge faster than a steady-use tank. Cleaning must happen more often, and the pipework needs regular inspection because pressure swings can open small cracks in pipes underground.

Should we inspect the pipes at the same time as the tank cleaning?

Absolutely. Shared tanks between shops and homes bear pressure that stresses small cracks in underground pipework. During cleaning we inspect pipes and joints for leaks or weakness that might let unfiltered water into the tank. A crack that is small today can widen under repeated pressure swings.

How much does water tank cleaning in Sharai cost?

It is set after the inspection, because the price follows the type of infestation, the size of the space, how far it has spread and the number of visits it needs. Send a photo and a description on WhatsApp and we will give you an estimate before we reach Sharai.