Water tank sealing in Al Ruwais Jeddah
Al Ruwais is an old quarter west of Madinah Road beside the Corniche, where aged apartment blocks stand mixed with newer buildings. Basement tanks here suffer from coastal salt and high moisture. Rooftop tanks on old buildings carry heavy weight and crack from slow structural movement in the ageing structure.
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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 Al Ruwais
Most buildings are very old, built decades ago, and tanks contain heavy mineral deposits and salt because of coastal proximity and the high-mineral local water supply. The method is set out in full on Water tank sealing in detail.
Basement tanks and coastal moisture
Basement tanks in Al Ruwais face moisture and salt from nearness to the Corniche and sea. Salt seeps from the soil and slowly eats the concrete and inner lining in a continuous process.
Old buildings and heavy rooftop tanks
Old apartment blocks carry the weight of large rooftop tanks under constant load. Slow structural movement in the ageing frame cracks the tank and loosens pipe joints.
Mix of old and new buildings with varied use
New construction beside old means tanks of different ages and wear stages. Medical centres and shops consume large water volumes, putting high pressure on old tanks.
Landmarks of Al Ruwais
Access to tank sites in Al Ruwais runs via Hail Street, the quarter's main thoroughfare, with the International Medical Center and Al Ruwais Park as local landmarks. The district is bounded by Al Hamra, Al Sharafiyah and West Al Baghdadiyah.
- Hail Street
- Madinah Road
- International Medical Center
- Haifa Mall
- Al Ruwais Park
- Al Ruwais Mosque
What we read before any material is opened
An old district west of Madinah Road near the Corniche, with older and newer apartment blocks, holding the International Medical Center, Haifa Mall and Al Ruwais Park. It borders Al Hamra, Al Sharafiyah and West Al Baghdadiyah.
Cracking in the wall
Fine cracks on outer walls and floor appear from salt and moisture and widen over time.
The floor to wall joint
The floor-wall joint is critically weak in basement tanks due to pressure from wet salty soil around it.
The condition of the old lining
Inlet, outlet and drain pipes leak from the outside as salt and moisture undermine the seal around each entry.
Sediment and scale
Salt and mineral deposits are thick on floors and walls from the high-mineral local supply and coastal exposure.
The pipe entries
The original lining is eroded by salt, coastal moisture and minerals and needs complete replacement.
The hatch and the vent
Water loss may come from outside (seeping salty soil) or inside (cracks), and sealing protects against both.
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 Sharafiyah Sub-Municipality
The Al Sharafiyah sub municipality runs across central Jeddah from Al Ruwais near the Corniche eastwards through Al Sharafiyah, Al Wurud and Bani Malik to Al Naseem at the Haramain Road. It was among the first areas to grow beyond the old wall, and it is dominated by dense apartment blocks over shops along King Fahd Road and Palestine Street, with old popular quarters, the Bani Malik market, car workshops and storerooms. Ageing buildings, worn drainage and the refuse of restaurants and markets make cockroaches and rodents the most persistent pests, and humidity rises towards the sea.
Questions about this district
Why do basement tanks in Al Ruwais corrode faster than tanks inland?
Salt from soil near the sea seeps through basement tank walls. High moisture and salt together eat the concrete and lining.
Does the high-mineral local water speed up decay?
Yes. Salts and minerals in the local supply deposit on walls and floor, speeding lining erosion.
Do rooftop tanks on old buildings need different sealing?
Yes. Old buildings move slowly, cracking tanks differently than modern rigid structures.
Does sealing protect against coastal salt and moisture?
Yes, the new lining protects against salt and moisture. But if soil is very saline, external treatment may also be needed.
Does sealing differ for old tanks versus new ones?
Yes, old tanks may need deeper cleaning of heavy salt and mineral deposits before sealing begins.
Do medical centres and shops need special sterilisation after sealing?
Yes, especially medical centres need thorough sterilisation and careful cleaning before the new water supply is used.
How much does water tank sealing in Al Ruwais 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 Ruwais.
Nearby districts we cover
Other services in Al Ruwais
Other services we provide to residents of Al Ruwais.
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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 Al Ruwais? Tell us what you saw and we will tell you what it needs
We reach Al Ruwais at a time we agree, and you get the full cost before we start.