Water tank sterilization in Al Ajwad Jeddah
Al Ajwad is a planned modern district in north eastern Jeddah containing villas and mid-rise apartment buildings with shop frontages. Tanks here serve a mix of families, flats and commercial premises and accumulate sediment and biofilm due to varied usage patterns. Our treatment begins by fully draining the tank and lifting sediment from the floor, then pressure-washing walls and base until clean.
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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 Ajwad
Tanks in Al Ajwad retain varied sediments because residential and commercial buildings own tanks of different sizes and operate under changing usage patterns. The method is set out in full on Water tank sterilization in detail.
Villas with deep tanks and weak insulation
Villas in Al Ajwad were built with deep underground tanks, many without sufficient sunlight shielding. Algae and biofilm grow rapidly in tanks exposed to direct light.
Mid-rise apartment buildings with multiple tanks
Mid-rise buildings often have two or more water tanks, one at ground level and one or more on the roof. Separation between tanks causes uneven sediment and deposits in each.
Retail shops and heavy daily water use
Shops and small restaurants on Al Ajwad Street consume heavy water loads daily. High pressure and rapid draw cycles increase sediment accumulation and thermal stress.
Al Ajwad on the map
Al Ajwad sits about 2 km from Al Manar and about 2.5 km from Al Samir.
Open in Google MapsWhat we read inside the tank before anything starts
A regularly planned district in north eastern Jeddah east of the Haramain expressway, bounded by Al Ajwad Street and Al Samir to the south and Al Manar to the north, containing a mix of villas, apartment buildings and retail shops.
Sediment on the floor
Sediment accumulates at the tank floor especially in villas without regular drainage, and clay and heavy minerals settle at the bottom.
The slime film on the wall
Biofilm and algae coat walls and floor, especially in tanks exposed to light or lacking proper insulation.
Light and heat
Outlet lines to distant taps retain deposits at bends and dead ends.
The lining and any cracking
Trapped moisture inside the tank and wet walls provide ideal conditions for microbial growth.
The lid and the openings
Deep villa tanks may hold heavy sediment in corners and depths, especially after years without inspection.
What shows up at the tap
Bacterial count is elevated when tested after periods of stagnation or repeated heavy use cycles.
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 Ajwad
Mixed district: shops at street level with homes above them
A mix of villas and apartment buildings means tank sizes and locations vary. Villas have deep underground tanks exposed to light, while buildings may have roof tanks that are shielded. Each type needs a different approach to draining, washing and sterilization.
Questions about this district
Do villas need more frequent sterilization than apartment buildings?
Yes. Villa underground tanks are exposed to more light and heat, so algae grow faster and sediment accumulates differently than in shielded tanks.
What is the difference in treating an underground tank versus a roof tank?
Underground tanks need full drainage and sediment removal from the floor because deposit concentrates there. Roof tanks are usually cleaner but require wall washing and line sterilization.
Why do tanks in Al Ajwad get dirty faster than other areas?
The mix of residential and commercial use means variable water draw patterns. Repeated pressure spikes and heat stress speed up sediment formation.
Do retail shops need a different sterilization schedule?
Yes. Shops and restaurants use far more water. Sterilization must occur more frequently than for residential villas.
How much sediment typically settles at the bottom?
It depends on tank age and water quality. In Al Ajwad we typically see layers 5 to 15 cm deep in tanks not cleaned for years.
Does high-pressure wall washing damage the tank material?
No if pressure is controlled and matched to the material. We use moderated pressure that removes biofilm without eroding the walls.
How much does water tank sterilization in Al Ajwad 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 Ajwad.
Nearby districts we cover
Other services in Al Ajwad
Other services we provide to residents of Al Ajwad.
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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 Ajwad? Tell us what you saw and we will tell you what it needs
We reach Al Ajwad at a time we agree, and you get the full cost before we start.