Water tank waterproofing in Sharurah: preventive periodic check

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

Before we start: what we know about Sharurah

Team note on Sharurah: 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 Sharurah sits about 724 m above sea level (SRTM open elevation data).

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

Water tanks in Sharurah are most often let down by hairline cracks and failed joints in the concrete walls and floor, which let water seep out slowly and go unnoticed until the tank is partly empty or the ground beside it stays damp. Because the leak is gradual, owners tend to top up the water rather than check the structure, and the damage is only found when the coating has already lost its grip. A periodic preventive check catches these early signs: damp patches, flaking paint, white mineral deposits on the outer wall, and a water level that drops faster than normal use would explain.

The local setting matters. The centre of Sharurah sits about 724 m above sea level, which means the town is higher than many coastal areas and the air is generally drier, so surfaces can dry out and shrink more often between wet spells. That movement tends to widen existing cracks rather than create entirely new ones, so a check should focus first on the joints and the places where the tank meets the base and the walls. Where a crack is found, crack injection is priced at SAR 40–120 per metre, which makes early repair far cheaper than waiting until a whole wall needs recoating. For the inside of the tank, tank internal coating is typically SAR 25–60 per m², and epoxy coating SAR 35–90 per m², while the roof and any exposed top surface may need liquid roof waterproofing at SAR 8–25 per m².

Before the visit, ask the provider to confirm which parts of the tank they will inspect, both inside and out, and whether the check includes the joints, the base and the roof. Ask how they will test for leaks rather than relying on a visual look alone, and whether they will explain any cracks in writing with a suggested repair method. Request a clear price breakdown using the per-square-metre or per-metre rates, and ask what drainage or access arrangements you need to make beforehand. A short, well-planned check each period is usually the simplest way to keep the tank sound.

Preventive checks follow a written schedule instead of waiting for a fault.

Signs that call for water tank waterproofing

If you notice one of these signs in Sharurah, it is a good moment to talk to the team:

• 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

• A common cause: construction joints.
• Damaged old coating.
• Cracks in the walls or floor — we check this before anything else.

How we choose the tool in Sharurah

How the work is done, step by step

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.

Facts and costs — Sharurah

Short answers for Sharurah

Common mistakes we see

• Using a material that is not intended for drinking water

What you get after the work

The written output: the material name, its batch number and the fill-test result. The report is numbered and can be checked with its verification code.