Water tank waterproofing for restaurants in Alzulfi

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

Before we start: what we know about Alzulfi

Team note on Alzulfi: 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.. Main roads in or near Alzulfi: King Fahd Road, Sheikh Ibn Baz Square, King Salman Road.

The centre of Alzulfi sits about 615 m above sea level (SRTM open elevation data).

Does a restaurant water tank in Alzulfi really need waterproofing, and what will it cost? The centre of Alzulfi sits about 615 m above sea level, and for restaurant owners that elevation matters less than the daily demands placed on the tank itself. Kitchens, dishwashing and constant refilling keep the tank under steady wear, so seepage and cracks can develop quietly. For tank work, the relevant rate is tank internal coating, which runs SAR 25–60 per m². Crack injection, where a leak line has opened, is priced at SAR 40–120 per metre. Knowing these ranges before the visit helps you judge any quote you receive.

Our inspection begins with a walk around the tank and a check of its internal surfaces for cracks, flaking old coatings and damp patches. The technician measures the tank surface area so the coating can be quoted per square metre, and marks any cracks so their length can be priced per metre. Where the tank sits on or near roof areas, the team also looks at liquid roof waterproofing, which is priced at SAR 8–25 per m², and bitumen membrane, at SAR 15–35 per m², to see whether the roof above the tank is letting water in. The findings are then matched to the works that actually apply, so you pay only for the sections that need attention.

Before the visit, gather a few details that speed up the assessment. Have the tank's dimensions or an approximate surface area ready, along with a note of when leaks were first noticed and whether the water supply was ever cut or drained. Make sure someone can give the technician access to the tank and the roof, and let the kitchen team know the tank may need to be emptied for inspection. If there are old repair records or earlier coating work, keep them to hand. With these prepared, the inspection goes faster and the quote reflects your restaurant's real situation in Alzulfi.

For restaurants, visits are planned outside service hours and recorded for the premises file.

Signs worth paying attention to

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

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

Where the problem usually comes from

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

Tools and methods, and when we use them

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.

Alzulfi in facts and sources

Common questions about water tank waterproofing in Alzulfi

Mistakes that cost more

• 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.