Underground tank leak detection in Al Azyzya, Riyadh: without breaking

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

Underground tank leak detection in Al Azyzya: the local context

The centre of Al Azyzya is at 24.5877, 46.7701, about 17 km from the centre of Riyadh, with an approximate radius of 3 km. The service-area circle on the map below is drawn from this point. The centre of Al Azyzya sits about 589 m above sea level (SRTM open elevation data).

Main roads in or near Al Azyzya: Southern Ring Road, Southern Ring Road, Al-Kharj.

Al Azyzya sits at roughly 24.5877 north, 46.7701 east, about 17 km from the centre of Riyadh, and its built-up area covers an approximate radius of 3 km. That distance from the city core means many properties here are spread across larger plots, and tanks are often installed away from the main road network. For a leak detection visit, this matters: technicians need to plan access routes, confirm where buried lines run, and allow time for travel from the city, so a clear site plan and a note of the tank's position help the job run smoothly.

The centre of the area lies at about 589 m above sea level, according to SRTM open elevation data. Elevation itself does not change how a tank leaks, but it does shape the ground around the tank and the groundwater that may collect near it. Owners should report any standing water, damp patches or unusual soil movement after heavy rain, since these can point to a fault in the tank wall or the pipework. The same survey approach used for flat sites still applies, but the readings should be checked against what the owner has observed on the surface.

Replacing a damaged tank is costly, and the internal coating is a major part of the price. Tank internal coating is priced at SAR 25–65 per m², so the size of the tank shell decides much of the budget. Because of this range, it pays to confirm the measured area before any repair is agreed. Common mistakes owners avoid include waiting for a strong fuel smell before calling for a test, using a single reading as proof a tank is sound, letting a repair go ahead without a written measurement of the coated surface, and assuming that a tank in a quiet, distant location needs no regular checks.

The aim is to locate the cause with instruments first, so any opening is limited to one point.

When do you need underground tank leak detection?

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

• A noticeable drop in the water level overnight
• The pump runs for longer periods
• The tank needs refilling faster than usual

Causes we see in the field

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

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.

Quick comparison: facts and costs in Al Azyzya

Common questions about underground tank leak detection in Al Azyzya

Common mistakes we see

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

What you receive

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.