Underground tank leak detection for duplexes in Al Fyha, Riyadh

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

What is specific about Al Fyha for underground tank leak detection

The centre of Al Fyha is at 24.6833, 46.8044, about 13.5 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 Fyha sits about 599 m above sea level (SRTM open elevation data).

Main roads in or near Al Fyha: Haroon Al Rasheed Road, Prince Saad Bin Abdulrahman Al Awal Road, Al Imam Al Shafi'i Road.

Picture a homeowner who lives in a duplex in Al Fyha, Riyadh, where the household shares a buried fuel or water tank beneath the yard or driveway. Like many owners of this property type, they rarely see the tank itself. Problems tend to surface indirectly: a drop in stored volume that nobody can explain, a damp patch near the boundary wall, or a smell that comes and goes after rain. By the time these signs are noticed, a small weakness may already have spread, and the household is left guessing whether the loss is real or just a metering quirk.

Al Fyha is located at roughly 24.6833, 46.8044, about 13.5 km from the centre of Riyadh, and its central area has an approximate radius of 1.2 km. The neighbourhood sits about 599 m above sea level, which means the local terrain and drainage patterns can differ from other parts of the city. For a duplex owner, this matters because a buried tank is exposed to the same ground conditions as the surrounding plots, so a leak can migrate along the trench line and be harder to trace. Knowing that Al Fyha is a defined area of about 1.2 km around its centre helps you describe the exact location to a technician, which saves time during inspection and avoids confusion about which tank is involved.

A sensible approach starts with records. Gather the tank's installation date, its material, and any previous repair notes, then compare recent consumption or refill figures with what you would normally expect for your household. Next, arrange a pressure or tightness check on the tank and its pipework, and ask for the findings in writing so that every duplex occupant sees the same result. If the tank's interior is found to be corroded, get a quotation for internal coating, noting that the internal coating itself is priced at SAR 25–70 per m², so the total depends on the surface area that needs treatment. Finally, agree on a simple monitoring routine among the occupants, such as a monthly volume check and a note of any new damp areas, so that a small problem is caught early rather than discovered after it has grown.

In a duplex, the two floors often share lines, so tests are done floor by floor.

Signs that call for underground tank leak detection

The following signs are worth checking before they grow:

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

Where the problem usually comes from

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

How we choose the tool in Al Fyha

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.

Quick comparison: facts and costs in Al Fyha

Short answers for Al Fyha

What we advise against

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

What you get after the work

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.