Water tank cleaning in Harat Al Bab Al Jadid, 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 Harat Al Bab Al Jadid

New villas fill their first tanks from site boreholes and tanker trucks carrying foundation water, and this water carries abnormally high sediment loads and dense clay that settle hard and thick on the tank floor. The method is set out in full on what Water tank cleaning involves.

The first reason

Fresh construction water contamination from new wells

New villas fill their tanks from shallow boreholes sunk in the building sites and from tanker trucks that carry water from foundation excavations. This water is heavily laden with sand, clay and heavy minerals from fresh subsoil, and deposits thick adhesive layers on the floor.

The second reason

Humidity and clay influence from Wadi Uranah

Wadi Uranah cuts across the district carrying high moisture and clay load after rain, and the water table sits high in new villa foundations. Ground moisture and the salt that Wadi Uranah carries can enter tanks through hairline cracks in fresh concrete linings.

The third reason

Hairline cracks in new concrete linings from rapid drying

New tanks dry quickly in intense summer heat before fresh concrete linings have fully set and cured. Rapid drying stress creates hairline cracks that allow contaminated groundwater to seep inward through the tank walls.

Harat Al Bab Al Jadid on the map

Harat Al Bab Al Jadid sits about 3 km from Al Shubaikah Al Jadid and about 3.5 km from Al Ghazzah Al Jadid.

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Before treatment

The condition of the tank decides the method

A development landscape of active building sites, open foundation pits, vacant plots and equipment, with Wadi Uranah cutting across it and carrying clay and high moisture loads seasonally.

Fine brown sediment beneath shallow water

The layer on the floor

The floor holds thick heavy deposits of sand, clay and heavy metal salts from the construction well water and fresh excavation that first fills new tanks.

Light and algae

Light enters new tanks in the development because they are built quickly and the lid may not be properly sealed at first, encouraging algae growth on the interior walls.

A damp concrete wall carrying a dark deposit

The deposit on the wall

Concrete walls release mineral deposits that form a grey film, and construction sediment accumulates as a thick coating because the water is so heavily laden.

A concrete surface with a fine hairline crack

The lining and hairline cracks

Fresh concrete linings shrink and crack rapidly in intense heat before they have properly cured and hardened, and hairline cracks admit moisture and salt from the surrounding ground.

The lid of a water tank on a building roof

The lid and the access hatch

Lids are often temporary at first and poorly sealed, allowing construction dust and airborne sand from open building sites to enter freely.

A plastic pipe leaving the exterior wall of a building

The vent and the overflow pipe

Vent openings clog quickly with construction dust and blown sand, and may become waterlogged from wadi moisture, reducing natural air circulation inside 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.

What is different about South Makkah Sub-Municipality

South Makkah sub municipality is the belt of Crown Prince schemes south of Al Ukayshiyah, along the Al Laith road and the extension of Ibrahim Al Khalil Road to the Fifth Ring Road and the Non Muslims bypass. Most of it is still bare: granted plots awaiting houses, new villas standing alone, open building sites and unfinished paving and drainage. Wadi Uranah and its tributaries cross the low ground and hold water after rain, hills close it in, and rodents, reptiles and scorpions shelter in stacked materials and foundation pits before the neighbourhoods fill up.

Questions about this district

We filled the new tank for the first time and the water is very cloudy. Is that normal?

Site well water and freshly excavated earth water carries high sediment and clay load. Clean the tank immediately after first filling, before connecting the water supply to the villa, to prevent this sediment from blocking pipes and damaging fixtures.

The villa is new and water is seeping from below the tank. Is it a leak or something else?

Fresh concrete linings crack under rapid drying stress in intense summer heat. A quick inspection will show whether true structural cracks need repair or whether the dampness is natural seepage through the fresh concrete.

The tank is ground level in a new development close to Wadi Uranah. Is that a problem?

Ground level tanks near wadis face high groundwater humidity and moisture ingress. Regular inspection is important to monitor the lining condition and check for water entry from outside the tank.

We started using the water and within two days it turned cloudy again. Why?

Construction sediment is very heavy and needs thorough deep cleaning. Water may stay cloudy for a time if the new lining was not properly flushed and cleaned in the first place.

The villa is still under construction and the tank has not been used. When should we clean it before moving in?

Clean the tank at least a week before first use to remove construction dust and residue from the new concrete lining, then flush all pipes thoroughly with clean water before connecting supplies.

Six months after we moved in the water has turned reddish from iron. Where is it coming from?

Iron in new tanks comes from reinforcement steel in the concrete or from brass and galvanised pipework. Acidic water from wadi moisture and salt slowly oxidises these metals over time.

How much does water tank cleaning in Harat Al Bab Al Jadid 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 Al Bab Al Jadid.