Underground tank leak detection for duplexes in Slah Al Dyn, Riyadh

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

Before we start: what we know about Slah Al Dyn

The centre of Slah Al Dyn is at 24.7322, 46.6986, about 3.1 km from the centre of Riyadh, with an approximate radius of 1.2 km. The approximate area shown on the map is centred here. Main roads in or near Slah Al Dyn: King Abdullah Road, Al Urubah Road, Abu Bakr Al Siddiq Road.

The centre of Slah Al Dyn sits about 623 m above sea level (SRTM open elevation data).

Is there a way to know whether the underground fuel or water tank under your duplex is leaking before the smell or the wet patch shows up? For owners and tenants in Slah Al Dyn, the answer starts with where the property sits. The centre of Slah Al Dyn is at 24.7322, 46.6986, about 3.1 km from the centre of Riyadh, with an approximate radius of 1.2 km. The centre of the district sits about 623 m above sea level, according to SRTM open elevation data. Knowing your exact location helps the inspector plan access and check the tank's surroundings, which matter when the ground around a buried tank may be disturbed.

The inspection for a duplex follows a clear order. First, the technician reviews the tank's location, age, and the lines that connect it to the building, and notes any signs of stored product in nearby soil or drainage. Next, the tank and its fittings are checked for leaks, and the internal condition is assessed, including the coating. Where the tank has an internal coating, pricing for recoating is commonly quoted at SAR 25–70 per m², so the size of the tank affects the final figure. The technician then records findings in plain language and explains which parts are sound, which need attention, and which can wait.

Before the visit, gather a few things that make the inspection faster and more accurate. Find any previous service records, the installation date if you have it, and the tank's approximate capacity. Clear a path to the access point, and tell the technician whether the duplex has one or two separate tanks, since many shared buildings differ in layout. If tenants use the water or fuel supply, let them know the inspection time so nobody is surprised by the work. A short conversation before the visit, with the exact address in Slah Al Dyn, gives you a clearer picture and a more useful report.

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

Signs worth paying attention to

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

• Damp or salt marks on the tiles above the tank
• The tank needs refilling faster than usual
• The pump runs for longer periods

Where the problem usually comes from

• A common cause: cracks in the concrete tank walls or floor.
• A common cause: construction joints and corners.
• A common cause: 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 — Slah Al Dyn

Questions from Slah Al Dyn

Common mistakes we see

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

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.