Underground tank leak detection for residential buildings in Al Slymanya, Riyadh

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

Why underground tank leak detection differs in Al Slymanya

The centre of Al Slymanya is at 24.7088, 46.6945, about 2 km from the centre of Riyadh, with an approximate radius of 3.3 km. The approximate area shown on the map is centred here. The centre of Al Slymanya sits about 612 m above sea level (SRTM open elevation data).

Main roads in or near Al Slymanya: King Fahd Road, King Abdulaziz Road, Abdulaziz bin Musaed bin Jalawi Road.

Imagine a homeowner in a residential building who notices that the monthly water bill has crept up for no clear reason, or that the water level in the rooftop tank drops faster than usual. Underground storage tanks are easy to forget because they sit out of sight, yet a slow leak can waste water and quietly damage the surrounding ground and foundations. For a building owner or tenant, the first question is simply whether anything is wrong, and the second is who should check it and how quickly.

Al Slymanya sits at coordinates 24.7088, 46.6945, roughly 2 km from the centre of Riyadh, within an approximate radius of 3.3 km. That means the district shares the same city-wide water supply and similar ground conditions as the capital, so the same warning signs apply here. The centre of the district lies about 612 m above sea level, a detail worth noting when technicians discuss pressure and tank placement. If a tank's internal coating has deteriorated, repairs are usually priced by area, at SAR 25–70 per m², so a clear assessment of the tank's size and condition helps owners plan a realistic budget before any work begins.

Start by recording your readings: note the water bill for several months and compare it with previous periods, and check the tank level on a fixed day each week. Next, look for wet patches, soft ground, cracks in nearby walls, or a damp smell around the tank access area, and photograph anything unusual with the date. Then arrange an inspection with a qualified technician who can test the tank and the connecting pipes, and ask for a written report that describes the findings in plain terms. Once the cause is known, agree on a repair scope and a per-square-metre estimate for any coating work, and keep copies of every report and invoice for your building records.

For a residential building, shared risers, tanks and pumps are checked as one system.

Signs worth paying attention to

The following signs are worth checking before they grow:

• 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
• The pump runs for longer periods

Causes we see in the field

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

Tools and methods, and when we use them

The steps in order

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 Slymanya

Questions from Al Slymanya

Mistakes that cost more

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

The written outputs

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