A technician washing the inside wall of a water tank with a high pressure hose
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Water tank sterilization in Al Wazeeriyah Jeddah

Al Wazeeriyah is a mixed residential quarter in south Jeddah holding apartment blocks and villas on a regular grid. Water here comes from the modern city network and shallow wells close to the surface. Tanks vary in size and type, and need regular sterilization because the network carries sediment and tanks can be contaminated by damp surrounding ground.

  • Potable-rated materials

    Linings and disinfectants cleared for drinking water tanks, not general-purpose products.

  • You get the downtime first

    How many hours the tank is out of service, told before we start rather than after we finish.

  • A first-draw flush

    We run the first draw off after refilling, and the tank is not handed back until the water runs clear.

  • Ground and roof tanks

    Villas, apartment blocks and premises that need a written record of each visit.

Why the job is different in Al Wazeeriyah

Water in Al Wazeeriyah comes from the modern city network, but old tanks on building and villa roofs accumulate slow sediment buildup from the network itself. The method is set out in full on how we approach Water tank sterilization.

The first reason

Roof tanks in apartment buildings

Dense apartment blocks here have large tanks on exposed roofs. These tanks face sun, heat, dust and airborne pollutants, requiring stronger sterilization.

The second reason

Buried and old villa tanks

Villas in the quarter have tanks buried beneath foundations or in back yards. These tanks may be very old and neglected for years.

The third reason

Modern network and slow sediment accumulation

The modern water network carries light sediment but it is cumulative. Tanks collect mineral deposits slowly from the network itself, especially in older tanks.

Landmarks of Al Wazeeriyah

Al Wazeeriyah is bounded by Al Falah Road on one side and Prince Abdullah Al Faisal Stadium on the northern edge. King Abdulaziz Hospital is very close, and Al Mahjar, Al Farouq and Madain Al Fahd define the other boundaries.

  • Al Falah Road
  • Stadium Street
  • Al Mahjar Street
  • Zainal Street
  • Prince Abdullah Al Faisal Stadium
Before treatment

What we read inside the tank before anything starts

A mixed residential quarter in south Jeddah framed by Al Falah Road, Stadium Street, Al Mahjar Street and Zainal Street. Prince Abdullah Al Faisal Stadium stands at the northern edge and King Abdulaziz Hospital is very close by.

Fine wet sand seen close up

Sediment on the floor

Mineral deposits from the modern network accumulate slowly on tank floors, especially in old tanks cleaned infrequently.

A concrete wall carrying a damp green layer

The slime film on the wall

Algae and bacteria grow on exposed roof tanks due to direct sun, heat and daylight.

A plastic water tank standing on a rooftop

Light and heat

Supply lines from the main tank to units may retain sediment from the network and tank.

A concrete surface carrying fine cracks

The lining and any cracking

Moisture in buried villa tanks may seep in if foundations are weak or old.

A metal cover over a water tank opening

The lid and the openings

Tank location varies between exposed roofs in apartment buildings and buried yards in villas.

A glass of water on a kitchen counter

What shows up at the tap

Post-sterilization inspection must focus on remaining sediment, corrosion and cracks in old tank walls.

How we work

  1. 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.

  2. 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.

  3. 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.

  4. 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

  • A technician inspecting with a flashlight

    A recorded inspection

    Material, capacity, sediment depth, the state of the lining, the lid and the overflow, all before any work begins.

  • A metal floor drain

    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.

  • A spray nozzle in close detail

    High pressure washing

    Walls, corners and around the outlet, until the biofilm that no disinfectant penetrates has gone.

  • A spray nozzle in close detail

    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.

  • A clean kitchen counter after treatment

    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.

  • The visit report being written on a clipboard

    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.

What is different about South Sub-Municipality

The South sub municipality runs from the edge of Old Makkah Road down to Al Khumrah and the southern corniche. Dense residential districts sit beside new subdivisions such as Al Sanabil and Al Taawun, warehouse fringes such as Al Saruriyah and Al Sarawat, and an old seaside settlement at Al Quzayn. Open stormwater channels cross the housing, and the warehouses, the vegetable and livestock markets and the nearby Islamic Port and Industrial City give pests shelter, food and year round humidity. Pressure is greatest in the older quarters, where drainage networks are ageing.

Questions about this district

Why do roof tanks in Al Wazeeriyah need more frequent sterilization than buried tanks?

Roof tanks face sun, heat, dust and airborne pollution. The exposed environment increases algae and bacterial growth.

Does sterilizing the main tank in a building protect all residents?

Yes, if the main tank is sterilized and its lines thoroughly flushed. But small auxiliary tanks in individual units may need separate treatment.

Do old villas in the quarter need different treatment than modern buildings?

Yes. Old villas have tanks that may be buried or unventilated. Cleaning is harder and sediment accumulates more.

What causes sediment remaining right after sterilization?

Sediment may come from the network itself or an old tank. If the tank is very old, deposits may be scaled to the walls.

Must we clean sub-lines in units after sterilizing the main tank?

Yes. Sub-lines may retain sediment. Complete flushing from the furthest tap is essential.

Does Al Wazeeriyah's location between the stadium and hospital affect water quality?

Possibly. These large facilities may stress the network. High pressure may increase sediment and tank wear.

How much does water tank sterilization in Al Wazeeriyah 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 Wazeeriyah.

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Need water tank sterilization in Al Wazeeriyah? Tell us what you saw and we will tell you what it needs

We reach Al Wazeeriyah at a time we agree, and you get the full cost before we start.

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