Water tank cleaning in Al Harah Al Janubiyah, 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 Al Harah Al Janubiyah

Thuwal tanks suffer rapid corrosion of metals and concrete because salt accelerates rust and oxide far faster than inland districts experience. The method is set out in full on our Water tank cleaning service.

The first reason

Salt and sea air accelerate rust and metal corrosion dramatically

Salt-laden air in Thuwal penetrates metals and concrete rapidly. Copper and iron pipes rust twice as fast as they do inland. Concrete develops salt cracks as mineral salt penetrates the stone. Cleaning must strip rust and salt from all surfaces, and protective coating often needs renewal. Metal parts may need replacement with marine-grade alternatives.

The second reason

Salty sandy soil and elevated shallow groundwater

Salty sandy ground drains fast but groundwater lies very close to the surface. In cooler wet seasons groundwater may rise towards tank bases. Groundwater here is mineral-rich and very salty, so if it seeps into the tank the water becomes undrinkable and must be replaced.

The third reason

Harbour proximity brings airborne salt dust and moisture from port operations

Thuwal harbour is very close by, and ships, ropes and cargo handling raise salty dust and oils. Harbour dust finds its way to tanks. Spray moisture from maritime operations causes very high external condensation on tanks, accelerating external corrosion.

Al Harah Al Janubiyah on the map

Al Harah Al Janubiyah sits about 0.5 km from Harat Al Sarahin and about 0.5 km from Harat Abu Zayd.

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Before treatment

The condition of the tank decides the method

A small coastal town on the Red Sea, with sandy salty soil, very high humidity year-round, and salt-laden air that penetrates all metals and concrete quickly. Nearness to the harbour means constant movement and dust from ships, ropes and cargo handling operations.

Fine brown sediment beneath shallow water

The layer on the floor

Settled matter may contain salt and minerals from sea air, and needs special cleaning and multiple rinses to remove completely.

Light and algae

Light enters roof-mounted tanks, and high humidity combined with salt deposits encourage rapid algae growth.

A damp concrete wall carrying a dark deposit

The deposit on the wall

Wall deposits mix salt with calcium and algae, and need chemical treatment specific to salt removal beyond standard pressure washing.

A concrete surface with a fine hairline crack

The lining and hairline cracks

Concrete lining erodes from salt penetration, and hairline cracks allow seawater-mineral seepage from surrounding soil.

The lid of a water tank on a building roof

The lid and the access hatch

Tank lids and openings often accumulate white salt layers from sea spray and need additional cleaning to remove.

A plastic pipe leaving the exterior wall of a building

The vent and the overflow pipe

Vent and overflow openings rust rapidly and require regular replacement with marine-grade salt-resistant materials.

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 Al Harah Al Janubiyah

Al Harah Al Janubiyah tanks scatter near Thuwal Corniche and Thuwal Harbour, the two main landmarks that orient the town. Anyone asking for Al Harah Al Janubiyah knows it is the open part facing south towards farms and empty ground, and there the small household tanks cluster tightly and are easy to find from the main streets.

Jeddah Madinah Road
Thuwal Corniche
Thuwal Harbour

Questions about this district

Why does the tank rust so quickly in Thuwal?

Salt-laden air corrodes all metals very rapidly. Copper and iron rust twice as fast as they do inland. Cleaning and protective recoating are needed every year, not every few years. Salt-resistant alternative metals for pipes may be a better investment here.

The water tastes salty even after cleaning. Where is it coming from?

Saline groundwater may be seeping into the tank from the surrounding soil. Salt deposits on tank walls from sea air are common. External inspection for seepage is essential. You may need additional external treatment and salt-barrier sealing.

Do algae grow faster because of the salt?

Algae thrive on moisture, light and salt. The high humidity in Thuwal encourages rapid growth. Strong disinfection and frequent cleaning (every three months) are necessary, and good ventilation reduces moisture accumulation.

The tank leaks through the walls from salt, not from cracks?

Salt penetrates concrete slowly over years, causing lining breakdown and tiny cracks. External sealing and protective coating slow the process. A new protective lining may be needed if salt damage is advanced.

How do we protect the tank from salty air between cleanings?

Strong external sealing and salt-resistant protective paint are essential. Fine mesh on openings reduces direct salt exposure. Annual salt removal from all surfaces and pipes is necessary to extend tank life significantly.

Should we replace the tank instead of repairing it repeatedly?

If the tank is very old and rust is extensive, replacement is better. Modern salt-resistant tanks may justify the investment here. We assess the condition first, then recommend the most economical option.

How much does water tank cleaning in Al Harah Al Janubiyah 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 Harah Al Janubiyah.