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

Water tank cleaning in Rashidiyah Makkah

Al Rashidiyah is a villa district on the eastern hillsides of Makkah beside the Makkah to Taif Expressway, with independent homes each carrying its own rooftop tank. Sandy soil sits on steep slopes, Wadi Mudarraja cuts through carrying high moisture and salt loads after rain, and the water table is close to the surface, so tanks suffer from moisture penetration and salt damage.

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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 Rashidiyah

Rashidiyah tanks leak more than other areas because contaminated wadi water and groundwater seeps through cracked linings stressed by high external moisture. The method is set out in full on what Water tank cleaning involves.

The first reason

Lining damage from wadi moisture and groundwater pressure

Wadi Mudarraja carries very high moisture, and groundwater rises close to the surface on the slopes. Tanks on rooftops face intense upward moisture pressure, and concrete linings crack under it, allowing contaminated water to seep inward.

The second reason

Salt and heavy metals from the wadi and wind blown dust

Strong dry winds lift salt and mineral dust from Wadi Mudarraja and the sandy soil, and these enter tanks through vent openings. Salt water speeds corrosion of reinforcement steel and metal pipes, and forms white and red scale deposits on the walls.

The third reason

Steep hillside topography and complex drainage patterns

Al Rashidiyah sits on steep terraced slopes, and surface water drains fast after rain, sometimes pooling near tanks in shallow seasonal floods. Complex slopes make the drainage around tank bases ineffective and water sits close to tank walls.

Rashidiyah on the map

Rashidiyah sits about 2 km from Tarwiyah and about 2.5 km from Uhud.

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Before treatment

The condition of the tank decides the method

A hillside villa district cut by a wadi that carries high moisture, with rocky sandy soil and a near surface water table creating sustained moisture pressure on tank walls and floors.

Fine brown sediment beneath shallow water

The layer on the floor

Floor sediment contains sand, clay and salt from Wadi Mudarraja and groundwater that seeps through cracked linings.

Light and algae

Algae is rare here because the water is salty and alkaline, but salt loving bacteria and fungi grow instead, especially in the cracks.

A damp concrete wall carrying a dark deposit

The deposit on the wall

White and red scale from salts and iron oxides coat the walls, especially after rain when salty groundwater enters the tank.

A concrete surface with a fine hairline crack

The lining and hairline cracks

Linings have cracked under outward moisture pressure and inward thermal stress, and hairline cracks continuously leak contaminated water inward.

The lid of a water tank on a building roof

The lid and the access hatch

Lids and hatches on the exposed rooftop age quickly, and maintenance seals may have loosened from moisture stress.

A plastic pipe leaving the exterior wall of a building

The vent and the overflow pipe

Vent openings clog with evaporated salt crystals and salt dust blown from the wadi and sandy soil surrounding the villa.

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 Rashidiyah

Al Rashidiyah tanks sit on villa rooftops spread across the district between Al Rashidiyah Park and the Al Rashidiyah Walkway to the east. Access is arranged via the Makkah to Taif Expressway which forms the northern boundary, where the main water supply pipes run beneath the road.

King Abdulaziz Sports City
Makkah to Taif Expressway
Wadi Mudarraja
Al Rashidiyah Walkway
Al Rashidiyah Park
Al Rashidiyah Health Centre

Questions about this district

The villa stands high on a hill and the water from the tank runs cloudy even after cleaning. Why?

Contaminated groundwater seeps into the tank through cracks in the lining. Regular inspections of the lining are essential, and you may need external repairs or better waterproofing.

Wadi Mudarraja flows past the villa after rain. Does it affect the tank?

Wadi water carries clay, salt and very high moisture. If your tank is close to the wadi, check the drainage around it and ensure water does not pool beneath the house.

The water runs white or cloudy from salts right after rain. What is the cure?

Salt from the wadi and sandy soil enters through cracked linings or loose pipe joints. Deep cleaning and regular inspections are vital, and you may need to improve the tank's external waterproofing.

The water has a strange odour right after rain. Why?

Groundwater seeping through the lining carries musty smell and taste from clay and decay. This signals lining damage and requires urgent inspection and repair.

The tank is ten years old. Will it withstand high pressure cleaning?

Tanks in Al Rashidiyah age quickly from moisture and salt. An inspection before cleaning is vital to check the lining, and you may need gentle low pressure washing instead.

The villa is new and the tank is new but water runs cloudy from the wadi below it. Is that normal?

Groundwater seeps through hairline cracks in the new concrete lining. You may need to improve the tank's external waterproofing or move the tank to higher ground.

How much does water tank cleaning in Rashidiyah 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 Rashidiyah.