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

Al Bayban is an ancient quarter on a hill north of the Grand Mosque, with stone palaces and buildings erected over a century ago. The tanks here are very old and laden with thick sediment and biofilm. Sterilization requires deep cleaning and high-pressure washing to remove years of accumulated deposits.

  • 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 Bayban

Buildings here are very old, most constructed in the early twentieth century from stone, earth and lime, with concrete tanks mounted on roofs that are decades old and caked with deposits. The method is set out in full on Water tank sterilization in detail.

The first reason

Tanks mounted on stone roofscapes

Tanks in Al Bayban sit directly atop old stone buildings. Water sits in them for long periods and extreme heat accelerates biofilm and rust formation.

The second reason

Heavy sediment and mineral load

Water from old wells and pipelines carries mineral deposits and high calcium content. Sediment settles thick at the tank base and hardens into a stubborn layer.

The third reason

Biofilm grows fast in extreme heat

High temperatures on Al Bayban's exposed roofscape speed bacterial and algal growth on tank walls. Poor ventilation and ancient surfaces create ideal conditions for contamination.

Landmarks of Al Bayban

Access to Al Bayban runs via Madinah Road from the south, with Qasr Kuwair, the historic five-storey palace crowning the hill, as the primary landmark and navigation anchor.

  • Qasr Kuwair
  • Hajun Street
  • Madinah Road
  • Hussain Arab Street
  • Abdullah Arif Road
Before treatment

What we read inside the tank before anything starts

A historic quarter on a hill north of the Sanctuary between Al Diyafah and Al Hajun off the Madinah road, home to palaces, old houses and period mosques.

Fine wet sand seen close up

Sediment on the floor

Water from old wells carries heavy clay and mineral deposits that settle in the tank base.

A concrete wall carrying a damp green layer

The slime film on the wall

Thick biofilm adheres to tank walls due to high heat, moisture and light exposure over time.

A plastic water tank standing on a rooftop

Light and heat

Old corroded pipelines on roofs shed rust particles into the water supply.

A concrete surface carrying fine cracks

The lining and any cracking

Extreme temperatures on Al Bayban's high roofs speed biofilm and algal growth even in newer tanks.

A metal cover over a water tank opening

The lid and the openings

Very large tanks in the palaces create deep zones where sediment does not settle easily and stays suspended.

A glass of water on a kitchen counter

What shows up at the tap

Slow flow or stagnant water for long periods speeds contamination and film, especially on exposed surfaces.

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 Al Utaybiyah Sub-Municipality

Al Utaybiyah sub municipality covers the old districts north of the Grand Mosque: the hillside quarters of Al Hajun, Al Utaybiyah and Al Bayban, Al Zahir and Al Shuhada at the northern entrance, and the newer Al Zahra, Al Diyafah and An Nuzhah westward. Its building stock is among the oldest in Makkah, stone houses on the hills, packed apartment blocks and sewers decades old, threaded with crowded markets like the Utaybiyah souq and furnished flats that fill in the pilgrim seasons. Wadi Al Zahir and Wadi Al Tanim carry storm water through it, and industrial workshops line Hajj Street.

Questions about this district

Why do tanks in Al Bayban foul faster than in other quarters?

Water from old pipelines carries more sediment and extreme roof heat speeds biofilm growth. Old tanks themselves do not insulate well against temperature swings.

Is one sterilization per year enough for an old tank?

Usually not. Old tanks foul quickly and deposits return. Sterilization every six months is safer, or before the summer heat surge begins.

Do thick deposits require special tools to remove?

Yes. High pressure and steel brush are needed to strip hard sediment and calcified biofilm.

Does mineral-rich water speed the fouling?

Very much so. Minerals and salts in the supply accelerate biofilm formation and rust on walls.

Do old palaces need different treatment?

Yes. Palaces have very large tanks and very high roofs. Access is harder and sterilization needs special equipment and more hands.

Does sterilization include flushing the lines downstream from the tank?

Yes. After tank sterilization we flush lines from the furthest tap because sediment also settles in pipes and clogs outlets.

How much does water tank sterilization in Al Bayban 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 Bayban.

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

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

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