Water tank cleaning in Al Ajwad, Jeddah

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 Al Ajwad

Soil stays damp around house foundations because drainage is incomplete; tanks here are more prone to leakage and seepage from groundwater than tanks in fully drained districts. The method is set out in full on how we approach Water tank cleaning.

The first reason

Insects and rodents find easy routes from vacant plots

Open plots and live building sites around the district shelter insects and rodents, creating easy passages to exposed tanks and foundation gaps. They leave droppings near intakes and may enter through cracks in pipes and hatch seals.

The second reason

Incomplete drainage keeps soil damp around tanks

Drainage networks are not finished in the newer blocks, so water pools around house foundations. The tank absorbs moisture from the damp soil it sits on, raising internal humidity and speeding bacterial growth.

The third reason

Seasonal wadis add sediment and pressure to groundwater

Wadi Umm Hablain and Wadi Al Asla flow in winter and spring, carrying soil, gravel and sand that enter the ground. This raises groundwater pressure against tank walls and can force water through cracks if the tank is not well sealed.

Al Ajwad on the map

Al Ajwad sits about 2 km from Al Manar and about 2.5 km from Al Samir.

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Before treatment

The condition of the tank decides the method

A planned grid area east of the Haramain expressway, but Wadi Umm Hablain and Wadi Al Asla cross the land, and groundwater runs high in parts, leaving soil damp around foundations.

Fine brown sediment beneath shallow water

The layer on the floor

The floor layer is grey or brown from sand, clay and sediment, damp and oily from groundwater, needing strong soaking and hard scraping.

Light and algae

Green algae is rare here because damp soil reduces light, but fine clay settles quickly and densely on the floor.

A damp concrete wall carrying a dark deposit

The deposit on the wall

Wall deposits are white and grey salt and clay, easy to shift with pressure but returning quickly as groundwater moisture wicks back up.

A concrete surface with a fine hairline crack

The lining and hairline cracks

Hairline cracks appear from lateral pressure exerted by groundwater pushing against the tank from outside.

The lid of a water tank on a building roof

The lid and the access hatch

The lid and access door sit in damp soil and mud, and the maintenance inlet drains slowly if at all.

A plastic pipe leaving the exterior wall of a building

The vent and the overflow pipe

The vent opening may be clogged with dampness and soil particles, and the overflow pipe may carry sand from surrounding earth.

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.

What is different about Briman Sub-Municipality

Briman sub-municipality sits east of the Haramain expressway on Jeddah's north eastern edge. Its older quarters are planned grids of villas and walk-up flats, while the outer districts are new subdivisions still being built out. Seasonal wadis such as Wadi Umm Hablain and Wadi Al Asla cross the area, groundwater runs high in places, and drainage networks in the newer districts are incomplete, so soil around foundations stays damp. Vacant plots, live building sites and constant dust give crawling insects and rodents easy routes into homes, and the food outlets along the main arteries keep them supplied.

Questions about this district

Do rats and cockroaches enter the tank from vacant land?

Yes. They leave dead droppings and insect remains near tank openings and may enter through pipe cracks and access hatch gaps.

Why is soil always damp around the tank?

Drainage is incomplete in some blocks, so rainwater and seepage collect around foundations.

Does the tank leak from groundwater pressure below?

It can, if soil moisture is severe enough. Groundwater pushes inward and water enters cracks in the base.

Do nearby wadis pollute the tank directly?

Not directly, but wadi flow raises groundwater levels, increasing moisture and pressure around the tank foundation.

Should we seal or waterproof the tank from dampness?

Yes. A waterproof membrane beneath the tank guards against rising moisture and reduces cleaning frequency.

Does the highway and nearby restaurants attract more pests?

Yes. The road raises dust levels and traffic noise, while restaurants provide food supplies that draw insects, multiplying pest activity around tanks.

How much does water tank cleaning in Al Ajwad 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 Al Ajwad.