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

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

What is specific about Al Dyra for underground tank leak detection

The centre of Al Dyra is at 24.6323, 46.7108, about 9.7 km from the centre of Riyadh, with an approximate radius of 3 km. The approximate area shown on the map is centred here. Al Dyra includes historic buildings.

The centre of Al Dyra sits about 589 m above sea level (SRTM open elevation data). Main roads in or near Al Dyra: King Fahd Road, Abdulaziz bin Musaed bin Jalawi Street, Al Batha.

The nearest wadi channel is about 2.8 km from the centre of Al Dyra (OpenStreetMap).

Al Deera, the district centre of Riyadh, sits about 9.7 km from the city centre, with the main roads Al Malik Fahd Road, Abdulaziz bin Masaad bin Jalawi Street and Al Batha running in and around the area. Most buildings here are historic or heritage structures, and the land stands roughly 589 metres above sea level. Because the neighbourhood is largely older construction, the underground tanks are often the original concrete units, so the crew starts by reading the tank's age, its access points and any past repairs before any testing begins.

For older buildings like these, the first checks focus on the tank walls, the base slab and the inlet and outlet joints, since these are where cracks and seepage most often start after decades of use. Ground movement from heavy traffic on the nearby main roads can also stress the tank, so the team looks at whether the surrounding soil has settled or shifted. The team also checks whether inside lining is needed, and any work priced per square metre, such as interior tank lining that typically falls between 25 and 65 riyals per m², is only confirmed after the inspection shows the exact area affected.

Before the visit, the customer should gather any drawings, the building's age records and a history of water bills or unexplained water loss, and should clear access to the tank cover and the pump room. It helps to ask the team which parts of the tank they will test, whether the results will be shown in writing, and how the leak will be pinpointed without damaging the historic structure above.

For a whole building, a survey of the shared systems comes before unit-by-unit work.

Signs that call for underground tank leak detection

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

Where the problem usually comes from

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

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.

Al Dyra in facts and sources

Common questions about underground tank leak detection in Al Dyra

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 receive

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