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

Water tank cleaning in Harat Abu Zayd Jeddah

Harat Abu Zayd is one of the quarters of Thuwal on the Red Sea coast north of Jeddah, where older popular building stands beside newer concrete housing. Shops occupy the ground floors with flats above them, and the area lies close to King Abdullah University of Science and Technology. Salt and high moisture in the coastal air, combined with the constant commercial activity, mean tanks here demand specialised care that inland districts do not face.

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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 Harat Abu Zayd

Water from the tap smells distinctly of salt, particularly after strong sea breezes at night, and old tanks carry thick red rust on the walls that builds year on year. The method is set out in full on how we approach Water tank cleaning.

The first reason

Salt and humidity rust tank walls rapidly

The quarter sits directly on the coast; the air is always salt laden. Old metal tanks rust fast, and the red rust layer thickens on the walls every year. Professional cleaning removes heavy rust, but the salt returns within months.

The second reason

Commercial shops below tanks drive up moisture and heat

Shops cook and use hot water; steam rises towards the tank above them, raising moisture levels inside the tank and speeding the growth of algae and bacteria.

The third reason

Old drainage may seep towards the tank

Popular old building has open or buried drainage channels close to tanks. After heavy rain, water may enter through cracks in tank walls or the foundation below.

Harat Abu Zayd on the map

Harat Abu Zayd sits about 0.5 km from Harat Al Sawalhah and about 0.5 km from Harat Al Amir.

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Before treatment

The condition of the tank decides the method

The coastal position on the Red Sea itself means very high humidity, and sea salt rides the air towards the district and its tanks, whilst old drainage runs close to the water table.

Fine brown sediment beneath shallow water

The layer on the floor

Tank floors in Harat Abu Zayd accumulate grey silt from salt and iron oxide rust. Strong flushing needs to be repeated because salt returns with every refill.

Light and algae

Light enters narrow tank openings, and high humidity speeds green algae growth. Cleaning removes algae and the cellulose films on the walls.

A damp concrete wall carrying a dark deposit

The deposit on the wall

Tank walls carry multiple layers of red and black rust. High pressure washing removes the deep layers, and mild acid treatment may be needed.

A concrete surface with a fine hairline crack

The lining and hairline cracks

Hairline cracks in old Thuwal tanks need careful inspection. High humidity accelerates corrosion. Re lining may be needed if cracks are numerous.

The lid of a water tank on a building roof

The lid and the access hatch

Tank lids and access hatches in old building may be damaged or worn. Cleaning includes all parts and gasket replacement if needed.

A plastic pipe leaving the exterior wall of a building

The vent and the overflow pipe

Vent and overflow openings carry salt, dust and small marine insects. Cleaning includes all parts and installation of protection against salt and pest entry.

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 Harat Abu Zayd

Harat Abu Zayd lies between Jeddah Madinah Road to the west and Thuwal Corniche to the east. Tank work is accessible from the main road, whilst the proximity to the sea determines how to address the unique challenges of salt and humidity.

Jeddah Madinah Road
King Abdullah University of Science and Technology
Thuwal Corniche

Questions about this district

Water from the flat smells strongly of sea salt. Is the sea contaminating the tank?

Salt in the air enters through vent openings and settles inside the tank. Cleaning removes accumulated salt, but the coastal location means cleaning intervals must be shorter than inland districts.

The tank has thick red rust on walls and floor. What is the cure?

Salt and moisture rust metal rapidly on the coast. High pressure cleaning removes heavy rust, but treatment with a rust inhibitor after cleaning may be needed.

The shop below the flat cooks constantly. Does steam enter the tank above?

Yes, steam and moisture from the kitchen rise and increase humidity inside the tank, speeding algae growth and silt. Cleaning is important and insulation is better.

The flat is near the old quarter and drainage is open. Could that be a risk?

Open old drainage carries contamination. After heavy rain, polluted water may seep through foundation cracks. Regular cleaning and inspection are essential.

King Abdullah University sits close to the quarter. Does it affect our water?

The university uses large amounts of water but runs a separate network. It may increase pressure on the main grid at peak times, which can stir up sediment.

Harat Abu Zayd is old and sits on the coast. Must the tank have extra protection?

Yes. An old coastal location means protection from salt, moisture and insects is essential, and cleaning cycles must be more frequent than inland districts.

How much does water tank cleaning in Harat Abu Zayd 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 Harat Abu Zayd.