Water tank sealing in North Obhur Jeddah
North Obhur is a coastal stretch on the north bank of Sharm Obhur, lined with villas, beach resorts and rest houses along North Obhur Beach. Tanks here face strong sea humidity and rapid salt deposits on surfaces. Saltwater aquifers may infiltrate buried tanks from surrounding soil.
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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 North Obhur
Coastal villas and resorts have both deep buried tanks and rooftop tanks, and highly saline groundwater exerts continuous pressure on buried tanks. The method is set out in full on the full Water tank sealing page.
Saline groundwater below the surface
North Obhur lies very close to sea level and the groundwater is highly saline. Buried tanks face continuous hydraulic pressure from saltwater-bearing soil surrounding them.
Luxury villas have multiple tanks and complex piping networks
Most coastal villas here have both rooftop and buried tanks with long pipe runs. Complex circuits and extended distribution increase leak points and failure risk.
Salt and humidity accelerate corrosion in the resort zone
Beach resorts and hotels consume very large water volumes and tanks operate under high pressure. Salt builds up rapidly on pipes, connections and internal linings.
The character of North Obhur
Coastal area: high humidity and salt air through the year
A coastal area with luxury villas means large and complex tank systems under high water pressure. Saline aquifers surrounding buried tanks demand very strong sealing and rigorous routine monitoring.
What we read before any material is opened
A coastal northern area on the north bank of Sharm Obhur, with villas and beach resorts and rest houses along North Obhur Beach, crossed by Prince Abdullah Al Faisal Street and holding the Jeddah Tower site within Jeddah Economic City.
Cracking in the wall
External surface inspection reveals white salt deposits, rapid corrosion, cracks and salt-driven pitting from sea spray.
The floor to wall joint
Floor-to-wall joint inspection reveals gaps and cracks caused by hydraulic pressure from surrounding saline groundwater.
The condition of the old lining
Pipe entry inspection reveals leaks and severe corrosion from salt, oxide build-up and rust.
Sediment and scale
Moisture and water pressure checks from saline groundwater surrounding the buried tank.
The pipe entries
Internal lining inspection reveals salt deposits, deformations, pitting and corrosion from saline water contact.
The hatch and the vent
Water quality testing reveals salt concentration, dissolved salts, sediment and cloudiness from internal salt infiltration.
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 Dhahban Sub-Municipality
Dhahban sub municipality is the northern coastal strip of Jeddah, running from the north bank of Sharm Obhur up to the old village of Dhahban and Salman Bay. Its districts are recently built, with owner occupied villas and apartments, beach resorts and chalets on the shore, and land subdivisions still being developed. Nearness to the sea keeps humidity high all year, irrigated lawns in villas, resorts and district parks hold water, Wadi Obhur and the vacant plots between buildings give rodents and reptiles shelter, and the old fishing village of Dhahban gives the far north a rural edge.
Questions about this district
Why does saline groundwater pose a specific problem in North Obhur?
The area lies very close to sea level and groundwater is highly saline. Continuous hydraulic pressure drives salt through fine cracks and weak joints.
Is a buried tank or rooftop tank better in North Obhur?
Both are necessary in large villas, but the buried tank requires stronger sealing to resist pressure from saline groundwater.
How do we detect salt infiltration from a buried tank into the drinking water supply?
Water testing after inspection reveals salt content, and internal tank cleaning shows white salt deposits and corrosion patterns.
Does resealing solve the saline groundwater problem permanently?
Resealing stops new infiltration, but if salt has already entered the tank or supply, full cleaning and repeated flushing may be needed.
How often should tanks be inspected in a coastal area like North Obhur?
Annual inspection is necessary because salt, humidity and water pressure greatly speed up corrosion.
Do resort tanks need different sealing than villa tanks?
Yes. Resorts consume far more water and tanks operate under higher pressure, so sealing must be stronger and more durable.
How much does water tank sealing in North Obhur 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 North Obhur.
Nearby districts we cover
Other services in North Obhur
Other services we provide to residents of North Obhur.
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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 North Obhur? Tell us what you saw and we will tell you what it needs
We reach North Obhur at a time we agree, and you get the full cost before we start.