Water tank waterproofing for rest houses & farms in Jazan

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

Why water tank waterproofing differs in Jazan

Jazan is about 1.9 km from the sea coast (OpenStreetMap). The centre of Jazan sits about 7 m above sea level (SRTM open elevation data).

Team note on Jazan: 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..

Water tank waterproofing for rest houses and farms in Jazan starts with the location itself. The centre of Jazan sits about 7 m above sea level (SRTM open elevation data), and the city is about 1.9 km from the sea coast (OpenStreetMap). Those two facts shape what the technician looks at first: how close the tank is to salt-laden coastal air, and how the ground and drainage around the tank behave on a site that is low-lying and near the water. Before any material is discussed, the tank's external walls, roof, and base are checked for exposure, and any sign of moisture movement is noted so the work can be planned around it.

The rest of the assessment depends on what the site visit reveals, and no general price can replace that. The technician inspects the tank's condition inside and out, looks for cracks, flaking or previous repairs, and checks whether the water seeping through is coming from the walls, the base, the roof or the inlet pipework. Access is assessed too, since a tank on a remote farm may need different working arrangements from one inside a rest house compound. The surface type, its age, and whether the water is used for drinking or only for irrigation or cleaning will all affect the choice of coating. Only once these points are confirmed can a sensible method be recommended.

To help the technician prepare, the owner should share the approximate size of the tank and the surfaces that need treatment, together with any history of leaks or past treatments. Pricing for common jobs in this area is set per square metre or per metre of crack, so measurements of the wetted area and the length of visible cracks make the estimate more useful. Options range from liquid roof waterproofing at SAR 8–25 per m² to tank internal coating at SAR 25–60 per m², and epoxy coating at SAR 35–90 per m². Clear notes about where water appears and when it is most noticeable will let the technician match the right system to the actual problem.

Rest houses and farms often have long buried lines, tanks and irrigation that need separate tests.

Signs that call for water tank waterproofing

These are the signs most often linked to water tank waterproofing:

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

Where the problem usually comes from

• A common cause: cracks in the walls or floor.
• Damaged old coating.
• Construction joints.

Tools we use in Jazan

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.

Jazan in facts and sources

Common questions about water tank waterproofing in Jazan

What we advise against

• 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.