Water tank sealing in Wali Al Ahd Makkah
Wali Al Ahd is a newly built residential quarter south of Al Shawqiyah, inside the Haram boundary, where three-storey apartments and villas stand on plots under active development schemes. Most tanks here are new but suffer early leaks because new distribution lines carry sediment and contamination, and the sandy soil and sea salt accelerate corrosion.
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Potable-rated materials
Linings and disinfectants cleared for drinking water tanks, not general-purpose products.
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You get the downtime first
How many hours the tank is out of service, told before we start rather than after we finish.
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A first-draw flush
We run the first draw off after refilling, and the tank is not handed back until the water runs clear.
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Ground and roof tanks
Villas, apartment blocks and premises that need a written record of each visit.
Why the job is different in Wali Al Ahd
Tanks here are newly built but mains water carries heavy sediment and the salt-laden sandy environment speeds surface deterioration. The method is set out in full on Water tank sealing in detail.
New tanks in a saline and desert setting
Sandy soil and proximity to sea salt make the environment harsh on concrete. New tanks have not faced long-term weather exposure but salt penetrates the surface quickly in this developing area.
Sediment in mains water from new distribution lines
The new network passes through areas under construction and sediment and sand reach the tank. This causes localised corrosion on the floor and walls within the first months.
Early leaks at pipe joints and wall-floor seams
New contractors may not install pipe fittings carefully enough. The joint between floor and wall and all pipe entry points are early leak sites in new villas and apartment buildings.
Landmarks of Wali Al Ahd
Access through Wali Al Ahd runs via Al Malik Fahd Road from the west or Al Layth Road from the north, with the Fourth Ring Road nearby as a geographic landmark.
- Al Layth Road
- Fourth Ring Road
- Abdullah ibn Abbas Street
- Al Shafei Park
- Al Shafei Health Centre
- Al Iman Mosque
What we read before any material is opened
A new residential quarter south of Al Shawqiyah within the Haram boundary, between Al Malik Fahd Road to the west and Al Ukayshiyah to the east. Al Layth Road passes through and the Fourth Ring Road lies close by, with apartment buildings and villas on plots at various construction stages.
Cracking in the wall
Sediment and sand settle on the floor, scratch the surface and create corrosion hotspots from which later leaks originate.
The floor to wall joint
Salt and moisture penetrate the concrete from below and sides via the saline sandy soil surrounding the tank.
The condition of the old lining
Pipe entry joints and loose new fittings are early weak points in newly built villas and apartments.
Sediment and scale
Moisture from groundwater and irrigation in new schemes increases pressure on the tank walls from outside.
The pipe entries
Fine cracks from thermal shrinkage in year one provide leak paths especially when salt and sediment are present.
The hatch and the vent
The joint between floor and walls is the weakest zone of a new tank and needs reinforcement before lining.
How we work
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1
Inspect with the tank empty
We drain it and read the surface dry: whether the water leaves through a crack, a joint or a pipe collar, and what the outer face of the wall and the ceiling below are telling us. A level test with the valves closed separates a leaking tank from leaking pipework.
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2
Clean and prepare the substrate
Sediment out, a high pressure wash, the loose old lining and the weak surface layer of the concrete taken back, then dried. The material grips sound substrate and nothing else.
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3
Make the cracks and joints good
Cracks are chased out and filled with a repair mortar, a cove is formed where the floor meets the wall, and every pipe collar is treated on its own.
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4
Lining, fill test, sterilisation
Successive coats, each run across the one beneath it, on the face the water touches. Then a full cure, a fill with the level watched, and sterilisation with the first fill run to waste before the tank returns to use.
What water tank sealing includes
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Finding where the water leaves
Carried out drained and dry: cracks, joints, pipe collars and the outer face of the wall.
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Draining and sediment removal
The last of the water and the settled layer on the floor come out, because a lining does not stick over sediment.
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Cracks and joints made good
The crack opened and filled, a cove formed at the floor to wall junction, and each pipe entry worked separately.
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Lining coats on the water face
More than one coat, each crossing the one below, in material made for drinking water tanks rather than roof waterproofing.
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Curing, fill test and sterilisation
The material is left to cure, the tank is filled and the level watched, then sterilised and the first fill run to waste. How long the cure takes follows the material and the weather, and we tell you before the date so you can plan around the supply.
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A follow-up level check
We come back once it is in service to read the level and check the outer face, because any remaining loss shows up then rather than on the day of the work.
What is different about Al Shawqiyah Sub-Municipality
Al Shawqiyah sub municipality runs south from the Third Ring Road to the city's edge on the Al Layth road and the Jeddah expressway. Planned districts such as Al Shawqiyah, Al Malik Fahd and Bathaa Quraish have wide streets, villas and apartment blocks, while schemes in Wali Al Ahd are being built out and informal housing in Al Ukayshiyah and Al Zuhur is being cleared. The vegetable market and livestock auction at Souq Al Halaqa, open construction sites, the rocky slopes of Jabal Thawr and sewers still being laid through the southern fringe offer exposed food, shelter and moisture.
Questions about this district
Why does a new tank leak when it is brand new?
Sediment from the new distribution mains and salt in the environment cause rapid corrosion in year one. Loose pipe fittings add to the problem.
Is sediment in the water the main leak source?
Yes. Water carries sand and sediment from the new network under construction. This scours the internal surface and causes localised corrosion.
Does sea salt affect Wali Al Ahd tanks more than other areas?
Yes. The quarter is new, the soil is very sandy and salt penetrates concrete from below and the sides more readily.
Does tank sealing protect against environmental salt?
Yes. A properly applied lining isolates the concrete from salt and moisture in the soil and prevents leaks from outside inward.
How often should new tanks in this quarter be inspected?
Every six months in year one because corrosion happens quickly. After that annual inspection is adequate.
Will a strong filter protect the tank from mains sediment?
A filter reduces sediment but cannot stop salt corrosion from the environment. Proper lining is the core solution.
How much does water tank sealing in Wali Al Ahd 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 Wali Al Ahd.
Nearby districts we cover
Other services in Wali Al Ahd
Other services we provide to residents of Wali Al Ahd.
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Water tanks
Water tank cleaning
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Water tanks
Water tank sterilization
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Water tanks
Tank leak repair
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Residential
Cockroach control
Need water tank sealing in Wali Al Ahd? Tell us what you saw and we will tell you what it needs
We reach Wali Al Ahd at a time we agree, and you get the full cost before we start.