A technician washing the inside wall of a water tank with a high pressure hose
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Water tank sterilization in Harat Abu Zayd Jeddah

Harat Abu Zayd is one of coastal Thuwal's quarters, mixing old popular buildings with modern concrete homes. The town was once known as Al Duaijiyah and relies on fishing and farming. Tanks here vary in size and age, and shallow groundwater and sea salt accelerate corrosion of metal tanks.

  • 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 Harat Abu Zayd

The quarter mixes old buildings with rusty tanks and newer homes with better-condition tanks. Groundwater here is shallow and sea salt seeps into old metal tanks. The method is set out in full on how we approach Water tank sterilization.

The first reason

Old metal tanks and corrosion sources

Old buildings contain rusty metal tanks from decades past. Sea salinity and coastal humidity eat through metal. Rust causes slow leaks and water cloudiness.

The second reason

Modern concrete homes and better tanks

Modern homes built in the last 10-15 years have concrete or modern plastic tanks. But these need first cleaning after installation and regular sterilization.

The third reason

Shallow water and sea salt affect directly

Groundwater here is shallow and wells sit close to the surface. Sea salt seeps directly into shallow groundwater. Tanks need frequent cleaning for salinity and salt deposits.

The character of Harat Abu Zayd

Mixed district: shops at street level with homes above them

A mixed quarter combining old metal-tank buildings with modern concrete homes. Treatment must account for tank type and stage of corrosion, and deep cleaning for salt and rust may need extended time and special methods depending on metal condition.

Before treatment

What we read inside the tank before anything starts

One of coastal Thuwal's quarters where old popular buildings stand beside modern concrete homes. An old fishing town once known as Al Duaijiyah on the Red Sea coast directly north of Jeddah.

Fine wet sand seen close up

Sediment on the floor

Sediment and salt and rust removal from floor is essential because sea salt enters shallow groundwater and accumulates in old tanks.

A concrete wall carrying a damp green layer

The slime film on the wall

Pressure washing walls removes brown rust layers and white salt deposits from metal tank walls.

A plastic water tank standing on a rooftop

Light and heat

Sterilizing lines from the furthest tap is necessary because salt and rust enter pipework and block small openings.

A concrete surface carrying fine cracks

The lining and any cracking

High coastal humidity and salt speed algal and bacterial growth on metal tank walls.

A metal cover over a water tank opening

The lid and the openings

An old tank may need internal protective coating after deep cleaning to prevent new rust.

A glass of water on a kitchen counter

What shows up at the tap

Metallic smell and taste in water may mean heavy rust, and complete cleaning and sterilization are needed to restore quality.

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 Thuwal Sub-Municipality

Thuwal sub municipality is a small fishing town on the Red Sea coast at the far northern edge of Jeddah governorate. Its old quarters are closely packed popular and mud built houses on narrow streets, with newer low rise concrete homes from the town's development programme beside them. Sea humidity stays high all year, the fishing harbour and the corniche form its seafront, water arrives by tanker so household tanks are everywhere, and the town sits on Wadi Thuwal, ringed by open ground and by the irrigated green campus of King Abdullah University of Science and Technology.

Questions about this district

Is rust in old metal tanks worth cleaning?

Yes. Rust leaches iron particles into water and creates metallic smell and taste. Deep cleaning and sterilization improve conditions but very old tanks may need replacement.

Does sea salinity directly affect the quarter's tanks?

Yes. Salt enters shallow groundwater directly. Salt accumulation on tank walls causes corrosion and cloudiness.

Can an old metal tank be cleaned and reused?

Yes, if rust is only surface-level. Deep cleaning and internal protective coating may extend the tank's life.

Do modern tanks need less sterilization than old ones?

Modern tanks need cleaning and first sterilization after installation, but then need regular sterilization like old ones.

What is the difference between salt and earth deposits in cleaning?

Salt deposits are harder than earth and need longer wash cycles and may require light acid cleaners.

Does sterilization stop metallic taste in water?

Sterilization kills bacteria but may not remove metallic taste. Deep cleaning of rust and salt is needed before sterilization.

How much does water tank sterilization in Harat Abu Zayd 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 Harat Abu Zayd.

Other services in Harat Abu Zayd

Other services we provide to residents of Harat Abu Zayd.

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Need water tank sterilization in Harat Abu Zayd? Tell us what you saw and we will tell you what it needs

We reach Harat Abu Zayd at a time we agree, and you get the full cost before we start.

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