Water tank waterproofing in Alrass: before summer & rain season

Prepared by the technical team · editorial review · last updated 13 November 2026 · Sources

Water tank waterproofing in Alrass: the local context

Team note on Alrass: Kashf teams serve this city and its nearby districts with the same documented inspection standard: device-based leak detection without demolition, a written report, and a clear scope before any work begins.. The centre of Alrass sits about 695 m above sea level (SRTM open elevation data).

Main roads in or near Alrass: King Abdulaziz Road, King Fahd Road, King Salman Road.

Before any sealant or coating goes on a water tank in Alrass, the first thing a technician checks is the tank's position and the heat it lives with. The centre of Alrass sits about 695 m above sea level (SRTM open elevation data), so the site is an inland, elevated area where summer sun is strong and the nights can still feel cool. That temperature swing matters, because it makes the tank walls expand and contract, which is why hairline cracks often appear at joints and corners first. The technician looks at the tank's base, its walls and any visible seams before deciding what kind of protection is suitable.

Other parts of the job depend on what is found on the day. The condition of the existing surface, moisture behind the walls, the state of the lid and the inlet and outlet fittings are all judged at the site visit, as is whether any old coating is lifting or flaking. The technician also decides on the method itself, since the choice depends on the tank and its surroundings rather than on any fixed rule. Pricing is only confirmed after inspection, and the ranges that apply to related work, such as tank internal coating at SAR 25–60 per m² or crack injection at SAR 40–120 per m, are estimates until the measurements are taken on site.

To help the technician prepare, it is useful to have the tank's approximate size and material ready, along with any record of earlier repairs or coatings. Note whether the tank is on a roof, at ground level or partly underground, and whether it holds drinking water, since that affects the products that can be used. Tell us about recent leaks, damp patches on nearby walls, or water stains on the roof below. Clear access to the tank and its roof, and a note on when the tank is normally emptied, will let the work be planned around your household's needs before the summer heat and the rain season arrive.

Checks before summer and before the rain season catch problems while they are still small.

Signs that call for water tank waterproofing

The following signs are worth checking before they grow:

• Unusual colour or taste in the water
• A tank that leaks after testing
• Deposits and flaking inside the tank

Where the problem usually comes from

• Construction joints — we check this before anything else.
• Damaged old coating — we check this before anything else.
• Cracks in the walls or floor — we check this before anything else.

Tools and methods, and when we use them

The steps in order

1. Emptying and ventilation: The tank is emptied and ventilated before entry.
2. Cleaning and preparation: Loose material is removed down to a sound surface.
3. Crack treatment: Active cracks are treated first.
4. Coating layers: A material intended for drinking-water tanks is applied.
5. Disinfection and fill test: The tank is disinfected and the level is monitored after filling.

Alrass in facts and sources

Questions from Alrass

What we advise against

• Using a material that is not intended for drinking water

The written outputs

You receive: the material name, its batch number and the fill-test result, in a technical report with a verification code.