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

Water tank cleaning in Al Taysir Makkah

Al Taysir is a district of apartment blocks and hotels west of the Grand Mosque, with residential buildings and tall hotel towers that lodge Umrah visitors during the seasons. Tanks sit on very high rooftops and empty and fill at maximum speed, with direct exposure to intense sun and wind stress. Umm Al Qura Road bounding the district generates ongoing construction dust, and tanks face extreme thermal swings and very high water pressure cycling.

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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 Al Taysir

Al Taysir tanks empty and fill faster than tanks in any other district because demand from pilgrims and visitors surges at peak season. The method is set out in full on what Water tank cleaning involves.

The first reason

Very tall hotel towers and tanks at extreme heights

Hotel towers in Al Taysir are very tall and tanks sit on extremely high roofs. The high pressure and rapid drainage from many floors constantly shakes the tank and stirs the settled sediment.

The second reason

Intense heat and extreme thermal cycling on exposed roofs

Exposed roofs in Al Taysir see intense heat all day and rapid cooling at night. Rapid expansion and contraction cracks concrete linings and increases algae and bacterial growth.

The third reason

Construction dust from Umm Al Qura Road and ongoing work

Umm Al Qura Road has excavations and ongoing construction, and dust rises on the wind to high rooftops. Tanks on tall hotel towers face humid air laden with construction particles.

Landmarks of Al Taysir

Al Taysir tanks sit on the roofs of apartment blocks and hotel towers spread between Al Taysir Street and King Abdulaziz Hospital. Access to the tanks is via Umm Al Qura Road which bounds the district on the south, and may involve climbing interior stairs and crossing roofs of the tall towers to reach the highest tanks.

Al Taysir Street
Umm Al Qura Road
King Abdulaziz Hospital
The Grand Mosque

Before treatment

The condition of the tank decides the method

A high density urban zone west of the mosque with towers and buildings at different heights, their tanks on exposed roofs subject to intense sun, high winds and severe temperature cycling.

Fine brown sediment beneath shallow water

The layer on the floor

Floor sediment is heavy and adhesive because rapid discharge from the tall tower constantly stirs it and it resettles fast.

Light and algae

Algae grows fast from light and very warm water on exposed roofs facing the sun.

A damp concrete wall carrying a dark deposit

The deposit on the wall

A thick green layer of algae coats the walls rapidly in intense heat.

A concrete surface with a fine hairline crack

The lining and hairline cracks

Concrete linings have cracked from rapid thermal expansion and contraction between daytime and night.

The lid of a water tank on a building roof

The lid and the access hatch

Lids and hatches face intense heat and wind, and heat may have weakened the seals.

A plastic pipe leaving the exterior wall of a building

The vent and the overflow pipe

Vent openings clog with construction dust and heat speeds evaporation in them.

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 Al Ghazza Sub-Municipality

Al Ghazza sub municipality wraps around the north and west of the Grand Mosque, from Al Shamiyah, Al Qararah and Shaib Amir round to Jarwal and Al Taysir. Large tracts were cleared for the northern expansion and the Rua Al Haram scheme, leaving excavated ground and open construction sites beside ageing blocks that now serve as dense seasonal lodgings in Jarwal and Al Taysir. Old flood paths still fall from Jabal Qaiqaan and Jabal Khandamah towards the mosque, and markets and eateries crowd Al Masjid Al Haram Road and Umm Al Qura Road.

Questions about this district

The hotel in Al Taysir loses water supply at peak times when visitors arrive. Why?

The tank empties at maximum speed because visitor numbers surge fast. High pressure from the tower accelerates discharge. Cleaning may help but the hotel may need a larger or extra tank.

Water at the hotel runs cloudy on the upper floors but clear on the lower floors. Why?

Upper floors receive water straight from the tank outlet and it carries sediment stirred by rapid discharge. Lower floors receive more settled water.

The hotel tank sits on a 45 storey tower and is very hot in summer. Does it affect the water?

Intense heat on the high roof speeds oxidation reactions and algae growth. Cleaning and disinfection before the season starts are essential.

Water at the hotel has a strong metal taste. Where does it come from?

Intense heat on the high tank speeds mineral and metal dissolution from reinforcement steel and copper pipes. Cleaning may help but better pipe insulation may be needed.

Upper guest rooms have cloudy water but the ground floor is clear. What is the cure?

Upper floors receive water after it climbs through long vertical pipes from the tank. Sediment may settle in the vertical pipes. Cleaning may help.

Umm Al Qura Road has lots of building work and dust enters the hotel. How do we protect the tank?

Dust enters through vent openings. Improving vent design and adding filters may reduce dust entry.

How much does water tank cleaning in Al Taysir 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 Taysir.