Underground tank leak detection for rest houses & farms in Al Flah, Riyadh

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

Why underground tank leak detection differs in Al Flah

The centre of Al Flah is at 24.7963, 46.7088, about 9.8 km from the centre of Riyadh, with an approximate radius of 1.9 km. The service-area circle on the map below is drawn from this point. Main roads in or near Al Flah: Northern Ring Road, Airport Road, Northern Ring Road.

The centre of Al Flah sits about 645 m above sea level (SRTM open elevation data).

Wondering whether the old underground tank beneath your rest house or farm is quietly losing water? In Al Flah, a site near 24.7963, 46.7088, about 9.8 km from the centre of Riyadh, property owners often ask this before a dry spell or a sudden drop in the water level. The area lies with a radius of about 1.9 km, and its centre sits roughly 645 m above sea level, so ground conditions and pipe runs can differ quite a bit from one plot to the next. A leak check here starts from the site itself rather than a generic assumption.

The inspection follows a set order. The technician first reviews how the tank has been filled, drawn and metered, then checks the pipework and fittings that connect to it, and finally tests the tank body for signs of water loss. Where the tank walls are concerned, the internal coating is one of the cost items you may see quoted, at SAR 25–70 per m², so the findings are reported with the area of coating involved and the options for repair or recoating. Each step is explained on site, and you receive a written summary of what was found and what it would take to fix it.

Before the visit, gather a few simple records that help the work move faster. Note when you last had the tank filled, any water bills or meter readings you have, and any unusual patterns such as wet patches, damp soil near pipes, or pumps running longer than usual. Clear access to the tank cover, the pump room and the pipe route will save time on the day. Having the tank's approximate size and age written down also helps, since it guides the testing method. With these details ready, the inspection can focus on the real question: whether your tank is holding water as it should.

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

Signs worth paying attention to

These are the signs most often linked to underground tank leak detection:

• The pump runs for longer periods
• A noticeable drop in the water level overnight
• Damp or salt marks on the tiles above the tank
• The tank needs refilling faster than usual

Where the problem usually comes from

• A common cause: a float valve that does not close, so water is wasted.
• Cracks in the concrete tank walls or floor.
• A common cause: construction joints and corners.

Tools and methods, and when we use them

How the work is done, step by step

1. Safety first: Tank lids and confined spaces are handled with ventilation and a second person on site.
2. Documented level test: Filling and use are stopped and the level is recorded against time.
3. Isolating the tank from the network: This tells us whether the loss is from the tank body or from the supply line.
4. Checking the body and connections: Inlet, outlet and overflow connections are inspected.
5. Recommendation: You get the next step in writing: repair, waterproofing or a line test.

Facts and costs — Al Flah

Short answers for Al Flah

Mistakes that cost more

• Ignoring the float valve
• Waterproofing the tank before confirming the loss is from the tank and not the line

The written outputs

You receive: the written level-test result and the recommended next step, in a technical report with a verification code.