Water tank waterproofing in Aldawadmi: emergency

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

What is specific about Aldawadmi for water tank waterproofing

Team note on Aldawadmi: 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 Aldawadmi sits about 976 m above sea level (SRTM open elevation data).

Main roads in or near Aldawadmi: King Abdulaziz Road, Dawadmi Bujadiyah Road.

Water tank leaks in Aldawadmi are usually an emergency because the tank is the household's main reserve, and a slow seep from a cracked wall or failed joint can empty it faster than residents expect. The most common problem for this property type is water escaping through cracks and failed coating on the tank's internal walls and base, which then soaks into the surrounding slab or the floor below. Tank internal coating is typically priced at SAR 25–60 per m², and crack injection at SAR 40–120 per metre, so the first step is usually to find exactly where the water is leaving before deciding on a repair.

The local setting shapes the approach. The centre of Aldawadmi sits about 976 m above sea level (SRTM open elevation data), so tanks here are often installed on rooftops or raised platforms where wind, sun and temperature swings act on the surfaces every day. Repairs should therefore favour coatings and fillers that can handle that thermal movement. Liquid roof waterproofing, at SAR 8–25 per m², suits exposed roof areas, while spray foam at SAR 20–45 per m² can be considered for insulated sections. Where a tank sits over a habitable space, the job may also touch the underlying slab, and in that case the scope should be agreed before work starts rather than discovered halfway through.

Before the technician arrives, ask for a written scope that names the surfaces to be treated and the method for each, such as epoxy coating at SAR 35–90 per m² or bitumen membrane at SAR 15–35 per m² where it applies. Ask how the tank will be emptied and refilled, how long the water supply will be affected, and whether the crack or joint will be inspected for movement before sealing. Request a clear quote per square metre or per metre of crack, so the final amount can be checked against the work done. Keeping these questions ready will help the emergency visit stay focused and the repair last.

If water is flowing, close the main valve first, then call or message with photos.

When do you need water tank waterproofing?

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

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

The most common causes

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

How we choose the tool in Aldawadmi

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.

Aldawadmi in facts and sources

Questions from Aldawadmi

Common mistakes we see

• Using a material that is not intended for drinking water

What you receive

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