Water tank cleaning in Jarwal, Makkah

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 Jarwal

Tanks here experience extreme seasonality with intense usage for weeks during Hajj and Umrah, then are largely drained during normal times, causing sharp swings in pressure and internal moisture that weaken the system. The method is set out in full on our Water tank cleaning service.

The first reason

Seasonal extremes crack linings and stress seals

During Hajj and Umrah the tank runs at full capacity with intense usage for weeks, then empties almost completely in quieter periods. This repeated expansion and contraction cracks linings and weakens metal joints, and small fractures allow contaminants to enter from soil around the tank base.

The second reason

Bacteria bloom in the dormant empty tank

When the tank empties completely during quiet periods, moisture and water residue remain in the base and corners. Bacteria grow rapidly in this stagnant, humid environment, and fresh water entering the tank after dormancy picks up these pathogens from the walls.

The third reason

Old pipes fail under seasonal pressure surges

The aged apartment buildings in Jarwal still carry weak historic pipework, and the sudden high pressure of Hajj season causes leaks and ruptures. Water escaping from broken pipes draws in contamination from the surrounding soil and puts pathogens directly into the tank.

The character of Jarwal

Apartment district: residential blocks, repeated floors and shared entrances

In a seasonally occupied apartment quarter, the tank endures extreme cyclical usage from crowded seasons to near total dormancy. This means cleaning is not routine but seasonal strategy focused on removing bacterial blooms before heavy usage, and managing the effects of pressure surges on metal and lining integrity.

Before treatment

The condition of the tank decides the method

Jarwal sits directly north west of the Grand Mosque, filled with old residential blocks now converted into budget hotels and furnished apartments. The seasonal heavy usage puts enormous stress on water systems built for residential use alone.

Fine brown sediment beneath shallow water

The layer on the floor

The floor accumulates bacteria and moisture rapidly during dormant periods, with stagnant water and returning flow leaving heavy deposits that need vigorous deep scrubbing.

Light and algae

Light and algae may appear in quiet periods, and humid conditions in the empty tank encourage fungal growth in the base and shadowed corners.

A damp concrete wall carrying a dark deposit

The deposit on the wall

Walls hold bacterial and mould layers from moisture trapped during quiet seasons, especially in corners and dark areas where light cannot reach.

A concrete surface with a fine hairline crack

The lining and hairline cracks

The plastic lining cracks from repeated severe expansion and contraction caused by extreme seasonality and the sudden high pressure surges.

The lid of a water tank on a building roof

The lid and the access hatch

The lid and access hatches rust quickly from trapped moisture, especially during dormant periods when the tank stands empty.

A plastic pipe leaving the exterior wall of a building

The vent and the overflow pipe

Vent openings and overflow pipes clog from bacteria and moisture during dormancy, needing careful cleaning before each season resumes.

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.

What is different about Al Ghazza Sub-Municipality

Al Ghazza sub municipality wraps around the north and west of the Grand Mosque, from Al Shamiyah, Al Qararah and Shaib Amir round to Jarwal and Al Taysir. Large tracts were cleared for the northern expansion and the Rua Al Haram scheme, leaving excavated ground and open construction sites beside ageing blocks that now serve as dense seasonal lodgings in Jarwal and Al Taysir. Old flood paths still fall from Jabal Qaiqaan and Jabal Khandamah towards the mosque, and markets and eateries crowd Al Masjid Al Haram Road and Umm Al Qura Road.

Questions about this district

Why must we clean the tank just before Hajj season?

The tank lies largely dormant for most of the year, bacteria build up and moisture clings to walls. Cleaning before the season removes these layers and ensures clean water for the pilgrims who will drink from it.

Will water stay clean throughout the entire Hajj season?

Intense continuous usage raises contamination risk from the high demand and pipes that cannot sustain the pressure. Additional cleaning mid season may be necessary if usage is very dense.

Does an empty tank cause health problems?

An empty damp tank becomes the ideal breeding ground for bacteria and mould. Fresh water entering after dormancy can be contaminated by the tank walls themselves.

Are small cracks from expansion and contraction dangerous?

Small fractures allow contaminants from soil and air to enter. They may be invisible but they affect water quality gradually over time.

How many times yearly does a Jarwal tank need cleaning?

Once weeks before Hajj and Umrah begin, possibly once more in the middle of the season if usage is very heavy. A final cleaning after the season ends removes traces of intensive use.

Should we inspect pipes for damage from seasonal pressure?

Yes, old pipes may burst under Hajj season pressure. Regular inspection for leaks and cracks before each Hajj season is essential.

How much does water tank cleaning in Jarwal 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 Jarwal.