A technician washing the inside wall of a water tank with a pressure hose

Water tank cleaning in Al Harazat Jeddah

Al Harazat is a dense apartment district in south eastern Jeddah, grown on former farmland through informal subdivisions close to the Old Makkah Road. Blocks stand tightly packed with shared tanks serving dozens of units. Continuous high usage fouls tanks rapidly, and hairline cracks in aging concrete allow silent water loss that residents discover only when bills spike.

Call now Message us on WhatsApp

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 Harazat

Shared tanks serving dozens of units here soil three times faster than single-family villa tanks do, and hairline cracks in aged concrete weep inward unnoticed for months or years. The method is set out in full on what Water tank cleaning involves.

The first reason

Intense usage and rapid sediment buildup

One block may house over one hundred residents, and the tank drains constantly. Sediment accumulates at rates far beyond single tanks because the sheer volume consumed means more particles rain down onto the floor with every heavy draw.

The second reason

Aged concrete and hairline fractures

Tanks in Al Harazat were built from weak, aged concrete, and the tiniest hairline cracks allow water to weep inward without showing external moisture, meaning water loss runs silently until pressure drops abruptly and residents call.

The third reason

Shared entry points and vent blockage

Tightly packed buildings prevent good drainage and ventilation is confined to narrow courtyards. Tank openings become plugged with salt and algal deposits from high humidity and poor air circulation, trapping moisture inside.

Al Harazat on the map

Al Harazat sits about 4.5 km from Umm Al Salam and about 5.5 km from Al Mahamid.

Open in Google Maps

Before treatment

The condition of the tank decides the method

The district built quickly on low-cost land outside municipal planning with narrow streets, low rise blocks and popular housing packed closely together at high population density throughout every structure.

Fine brown sediment beneath shallow water

The layer on the floor

The floor collects very dense sediment because intense continuous usage drops more particles constantly, and old concrete may hold micro fractures that allow fine particles to seep inward.

Light and algae

Light is limited in tanks enclosed within narrow courtyards, but algae grows from humidity and salt accumulation even in near darkness, fed by minerals in the water.

A damp concrete wall carrying a dark deposit

The deposit on the wall

Walls carry thick salt crusts and black algae from high humidity and non stop usage, and these layers bond hard to the surface, resisting casual washing.

A concrete surface with a fine hairline crack

The lining and hairline cracks

Hairline cracks in concrete widen over time under continuous pressure, and inward weeping can go unnoticed for years before pressure loss forces attention.

The lid of a water tank on a building roof

The lid and the access hatch

Tank lids on dense blocks are heavy and corroded, and maintenance openings are so tight that access is difficult and internal cleaning is severely limited by space.

A plastic pipe leaving the exterior wall of a building

The vent and the overflow pipe

Vent openings clog with salt and sediment deposits, and overflow pipes may be cemented shut by mineral buildup, preventing proper drainage of excess water.

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.

The character of Al Harazat

Apartment district: residential blocks, repeated floors and shared entrances

An apartment district means shared tanks serving many units, and intense continuous usage soils tanks faster, while aged concrete cracks subtly and weeps inward, requiring vigilant monitoring to catch water loss before it becomes critical.

Questions about this district

Do shared tanks serving many flats need more frequent cleaning?

Much more. One tank serving one hundred flats drains at rates far exceeding a villa tank, so sediment accumulates far faster and water clouds much more quickly with any disturbance.

Why does water seep from below the building without a clear cause?

Old concrete in Al Harazat holds hairline fractures invisible to the eye. Water weeps inward slowly without external dampness appearing until pressure falls sharply, then residents notice the leak.

Can hairline cracks be repaired or must the tank be replaced?

Hairline fractures demand stronger disinfection and close monitoring. Full replacement is needed only if cracks grow large enough to lose significant water volume, which takes years to develop.

Should we clean the shared tank before family gatherings?

Yes, especially before long holidays. Usage rises and shared tanks foul faster when the supply network faces extra demand, making pre event cleaning wise practice.

Where do strange smells from shared tanks come from?

Smell comes from organic sediment fermenting at the bottom. Every flat adds dust and organic matter, and shared tanks collect all of it, concentrating odour faster than single tanks.

Is the building owner or the tenant responsible for cleaning?

The owner is responsible, but tenants should demand cleaning because their water quality matters equally. Co ordination is essential because cleaning delays harm everyone in the building.

How much does water tank cleaning in Al Harazat 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 Harazat.