Water tank sterilization in Al Mahjar Jeddah
Al Mahjar is a mixed district south Jeddah combining major hospitals and dense residential areas with shops. Hospitals and medical colleges use vast quantities of water and their tanks need regular sterilization to supply clean water to patients and medical procedures. The old quarantine station site leaves moisture traces in the ground, and high humidity accelerates tank contamination.
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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 Mahjar
The district is close to the coast with very high humidity, and hospitals and medical colleges have extremely heavy water use from washing and procedures. The method is set out in full on the full Water tank sterilization page.
Hospitals need pure water for procedures and medical washing
Hospital tanks in Al Mahjar serve multiple departments, operating theatres and patient wards. Continuous and heavy use increases contamination risk and rapid sediment buildup.
Coastal humidity accelerates biofilm formation
The location is close to the sea and saline moisture is present in the air. This humidity speeds bacterial and algal growth on tank internal walls.
Old foundations at the quarantine site affect water quality
Building foundations here are old because the site was historically a quarantine station. Ancient soil and foundations seep minerals and salts into groundwater.
Al Mahjar on the map
Al Mahjar sits about 3 km from Al Wazeeriyah and about 4 km from Al Saruriyah.
Open in Google MapsWhat we read inside the tank before anything starts
A mixed district south Jeddah between Al Wazeeriyah and the coast, hosting King Abdulaziz Hospital, multiple medical college hospitals, shops and residential areas.
Sediment on the floor
Mineral and salt sediments from the old coastal soil accumulate quickly on tank floors when groundwater is used.
The slime film on the wall
Biofilm grows rapidly from high coastal humidity and coats tank walls with thick green slime.
Light and heat
Medical piping networks carry heavy loads from continuous washing and sterilization, with deposits forming quickly in lateral pipes.
The lining and any cracking
Humidity from the nearby sea and intensive medical water use speed contamination and bacterial growth in tanks.
The lid and the openings
Tank floors collect heavy sediment from salts, minerals and rust from old piping.
What shows up at the tap
Post-sterilization water quality checks in hospitals must include full bacteriological and chemical testing before resuming patient service.
How we work
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1
Inspect and record the condition
We open the hatch and work through what the tank is made of and how big it is, how deep the sediment lies, the state of the lining, whether the lid and the overflow seal, and whether there is a crack that has to be repaired before any sterilizing.
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2
Drain and lift the sediment out
The water goes out, then the silt and sand are lifted off the floor by suction rather than pushed toward the outlet, because pushing them sends them into the house pipework and the heater.
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3
High pressure wash
Walls, floor, corners and the area around the outlet, until the slime film is completely gone. This is the step that makes the sterilizing after it mean anything.
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4
Sterilize, rinse, then return to service
The sterilizing agent goes onto the walls, the floor and the underside of the lid and is left for its contact time, then we rinse, refill and run the furthest tap until the whole line is clear.
What water tank sterilization includes
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A recorded inspection
Material, capacity, sediment depth, the state of the lining, the lid and the overflow, all before any work begins.
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Draining and sediment removal
The water out, and the silt and sand lifted off the floor instead of being pushed into the outlet and the house pipework.
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High pressure washing
Walls, corners and around the outlet, until the biofilm that no disinfectant penetrates has gone.
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Sterilizing the internal surfaces
A sterilizing agent meant for drinking water tanks, applied to the walls, the floor and the underside of the lid, and left for its contact time.
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Line flush and aftercare
Rinse, refill and a flush from the furthest tap, when the water is usable again, and what to change in the filter afterwards.
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The next cycle
We agree the right interval for your tank from how it is filled, how much sun it takes and the condition of the lid.
The character of Al Mahjar
Mixed district: shops at street level with homes above them
The medical zone in Al Mahjar has strict water quality standards. Sterilization must follow rigorous medical protocols and post-sterilization testing is mandatory for all hospitals and medical colleges before resuming patient care.
Questions about this district
Do hospitals and medical colleges in Al Mahjar need different water quality standards than residential areas?
Yes, hospitals need very clean water for procedures and medical washing. Sterilization must be more rigorous and post-sterilization testing is essential.
Why does coastal humidity cause faster tank contamination?
High saline humidity accelerates bacterial and algal growth rapidly. Tanks near the sea need sterilization more frequently than in dry areas.
Do salts from old soil affect water taste and quality?
Yes, salts and minerals from coastal and ancient soil increase water cloudiness. Pressure washing and pipe cleaning remove some, but additional treatment or filtration may be needed.
Is sterilization alone enough or do hospitals need additional steps?
Basic sterilization is essential but hospitals may need regular water quality testing and additional filtration to meet medical standards.
How often should a hospital tank be sterilized in the wet season?
In very humid Al Mahjar, sterilization every three months is recommended for medical facilities. Medical operations cannot tolerate contamination risk.
Does the old quarantine site location affect underground tanks?
Yes, tanks below ground at this location may leak or become contaminated from seepage. Annual crack and leak inspection is essential.
How much does water tank sterilization in Al Mahjar 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 Mahjar.
Nearby districts we cover
Other services in Al Mahjar
Other services we provide to residents of Al Mahjar.
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Water tanks
Water tank cleaning
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Water tanks
Water tank sealing
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Water tanks
Tank leak repair
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Residential
Cockroach control
Need water tank sterilization in Al Mahjar? Tell us what you saw and we will tell you what it needs
We reach Al Mahjar at a time we agree, and you get the full cost before we start.