Water tank cleaning in Harat Al Kanadirah, Jeddah

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 Al Kanadirah

Tanks here collect tanker water that may vary in quality between loads, so the floor sediment thickens faster than in inland areas and needs more frequent attention. The method is set out in full on how we approach Water tank cleaning.

The first reason

A shared tank serving shop and homes

The ground floor shop runs water at different volumes and times than the flats above. When water pressure drops as the shop closes, sediment from the floor can resuspend upward. Cleaning must be timed so neither the shop nor the residents lose water supply simultaneously.

The second reason

Salt air deposits on tank walls

Airborne salt crystals settle inside the tank if the vents and lids are not airtight. This salt layer mixes with algae growth and bacteria to create a caked deposit that pressure washing alone cannot always dissolve without chemical help.

The third reason

Tanker water brings variable loads

Each tanker fills carries different sediment and particulate matter depending on its origin. The sediment bed deepens unpredictably fast, and home water filters bear the extra load. Cleaning must be more frequent than in districts with mains water.

The character of Harat Al Kanadirah

Mixed district: shops at street level with homes above them

Shop and homes share the tank, so we time cleaning to fit both routines. The shop may need water during trading hours and the residents need it in the evening. Any shared supply lines need flushing.

Before treatment

The condition of the tank decides the method

The coastal town sits on Wadi Thuwal and is ringed by the university campus to the north and the express road to the east, drawing its water supply entirely from tanker deliveries.

Fine brown sediment beneath shallow water

The layer on the floor

Sediment here arrives in sudden tanker loads and settles in thick layers on the floor much faster than in areas with steady mains pressure, requiring more frequent removal.

Light and algae

Algae growth depends on light and humidity entering the tank, not on salt air. The salt in sea wind does not inhibit algae but may accelerate corrosion of older tank shells.

A damp concrete wall carrying a dark deposit

The deposit on the wall

Wall deposits here are a mix of algae, bacteria and salt crystals from the air, not simply biological film. High pressure alone may not shift them without disinfectant and dwell time.

A concrete surface with a fine hairline crack

The lining and hairline cracks

Hairline cracks can appear as salt and humidity cause slow corrosion of the tank body over years, especially if the tank was old when installed.

The lid of a water tank on a building roof

The lid and the access hatch

The lid and vent seals corrode in the salt air, so the gaskets may no longer seal tightly. The access hatch hinges may rust and the bolt may stick.

A plastic pipe leaving the exterior wall of a building

The vent and the overflow pipe

The vent hole may admit sea salt crystals directly, and the overflow pipe can weep salted water if the tank is overfilled during a tanker delivery.

How we work

1
Inspect before the drain

Tank type and material, the condition of the lining, the depth of the sediment, the lid and the vent, and where the drained water will go. We agree the window without supply before anything is opened.
2
Drain, then lift the sludge

The water leaves through the outlet, then the layer beneath it is taken out by hand and by suction. That layer is the reason for the visit, not the water that ran out ahead of it.
3
High pressure wash

Walls, floor and the joint where they meet, with a brush wherever the film resists, then the wash water is taken out completely so nothing we lifted settles again.
4
Disinfect and put back in service

Disinfectant over every internal surface, left for its contact time and then rinsed out, followed by the refill, a first draw off at the taps, and a report on what was inside the tank.

What water tank cleaning includes

An inspection before the valve

Tank type, lining condition, depth of sediment, lid and vent, recorded before any water leaves.
Full drain and sediment removal

The water through the outlet, and the layer below it by hand and by suction until the floor itself is showing.
Pressure washing walls and floor

High pressure across the surfaces and corners, and a brush on anything water alone will not lift.
Disinfection after the wash

A disinfectant intended for drinking water tanks, named to you before it is used, left for its contact time and then rinsed out.
Refill and the first draw off

We refill, run the taps so the new water moves through the pipework, and tell you when it is ready to use.
A report and the next date

What was inside the tank, anything on the lid or the lining that needs repair, and a sensible date for the next clean.

Landmarks of Harat Al Kanadirah

Harat Al Kanadirah lies between the King Abdullah University campus to the north and the Thuwal Corniche to the east. We reach the tanks by the streets near the corniche or from the university side depending on the building's layout.

King Abdullah University of Science and Technology
Thuwal Corniche
Jeddah Madinah Road
Al Shati Mosque

Questions about this district

Our tank serves both the shop below and the flats. Does this cause cleaning problems?

Yes, the shop consumes water in bursts during opening hours, so the tank pressure and water level change constantly. We schedule cleaning so neither residents nor shop lose supply at the same time, and we inspect any shared pipework and filters.

Water from the tanker goes straight into our tank. Does this increase sediment buildup?

Tanker fills are sudden and may carry unsettled particles. The tank bears a heavier load and sediment accumulates faster than in properties with mains supply. Cleaning intervals may need to be shorter.

The tap water smells like sea salt. Where does this come from?

Salt can enter through vent holes or fine cracks in an older tank, especially close to the coast. Cleaning and disinfectant will remove it, but we also check the vents, lids and pipes to seal any gaps.

Our tank weeps small droplets from the walls. Is salt damage to blame?

Salt and humidity cause slow corrosion of the tank shell, and hairline cracks can seep. If the cracks are hairline we can wash and disinfect, but larger fractures mean repair or replacement is due.

Do algae grow faster in Thuwal than other areas because of the salt?

Salt does not speed algae growth, but high humidity and light do. Our coastal tanks need tight lids and regular cleaning to prevent algal film, regardless of salt presence.

The shop opens early and the flat wakes late. Does this harm water quality?

The tank pressure changes all day as water demand shifts. Air can enter when pressure drops in the flat while the shop is open, which can resuspend floor sediment and cloud the water.

How much does water tank cleaning in Harat Al Kanadirah 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 Al Kanadirah.