Underground tank leak detection in Al Mrwa, Riyadh: emergency

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

What is specific about Al Mrwa for underground tank leak detection

The centre of Al Mrwa is at 24.5387, 46.6741, about 19.4 km from the centre of Riyadh, with an approximate radius of 1.2 km. The service-area circle on the map below is drawn from this point. The centre of Al Mrwa sits about 652 m above sea level (SRTM open elevation data).

The nearest wadi channel is about 2.8 km from the centre of Al Mrwa (OpenStreetMap). Main roads in or near Al Mrwa: Al Sahra, Dirab Road, Ibn Taymiyyah Street.

Could a fuel or water tank be leaking under the ground in Al Mrwa without you noticing? For many property owners the first sign is a sudden rise in fuel use, a damp patch near the tank area, or a smell that does not match anything above ground. In Al Mrwa, which sits at about 24.5387, 46.6741, roughly 19.4 km from the centre of Riyadh with an approximate radius of 1.2 km, the ground is high and open, around 652 m above sea level. The nearest wadi channel lies about 2.8 km from the centre of the area, so surface water and buried tanks should both be checked with care. If you suspect a leak, treat it as an emergency and arrange a visit promptly rather than waiting for the problem to spread.

When the inspection team arrives, they start by confirming the tank location and reviewing any recent changes in stock levels, pressure readings or moisture near the fill points. The team then checks the tank walls and internal condition, looking at where a coating may have worn or failed. Where repairs are needed, the internal coating is priced at SAR 25–70 per m², and the final quote depends on the measured surface area and the condition of the tank. The team will explain each finding in plain terms before any work begins, so you understand what has failed, what is urgent and what can wait.

Before the visit, gather the records you already have, including past tank installation papers, previous repair invoices and any logs of fuel or water deliveries. Note when you first noticed the problem, what you saw or smelled, and whether the level changed after heavy rain or a particularly hot day. Clear access to the tank area and any covers or manhole points so the team can work without delay. Keep the area around the tank free of vehicles and stored items, and avoid digging or driving heavy equipment over it until the inspection is complete. These simple steps help the team reach a clear diagnosis faster and reduce the risk of further damage.

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

When do you need underground tank leak detection?

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

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

Where the problem usually comes from

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

Tools we use in Al Mrwa

From the first visit to the report

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.

Al Mrwa in facts and sources

Common questions about underground tank leak detection in Al Mrwa

Common mistakes we see

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

The written outputs

The written output: the written level-test result and the recommended next step. The report is numbered and can be checked with its verification code.