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

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

Why underground tank leak detection differs in Al Taawn

The centre of Al Taawn is at 24.7731, 46.6995, about 7 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 Al Taawn: Northern Ring Road, Uthman ibn Affan Road, Abu Bakr Al-Siddiq Road.

The centre of Al Taawn sits about 666 m above sea level (SRTM open elevation data).

Underground tank leak detection in Al Taawn starts with the location itself. The centre of Al Taawn sits at 24.7731, 46.6995, about 7 km from the centre of Riyadh, and the neighbourhood covers an approximate radius of 1.2 km. Because the area is compact and lies roughly 666 m above sea level, a technician can usually plan the route, access points and tank records before arriving. Confirm the building's address falls within that radius, note the tank's position relative to the building, and check whether any previous repair or coating work is on file. These first checks shape how quickly the rest of the inspection can proceed.

Several parts of the inspection depend on what is found on site and cannot be settled from a desk. The condition of the tank walls, the presence and extent of any corrosion, the tightness of fittings and the state of the inlet and outlet pipework all need direct examination. The technician will also judge whether an internal coating is needed and how much surface it would cover. Coating costs are typically quoted at SAR 25–70 per m², but the final figure depends entirely on the measured area and the condition of the surface, so no estimate should be given until the visit is complete. Access, ventilation and the safe handling of any residual contents are also decided once the tank is open to view.

To help the technician, the resident or building manager should have the tank's approximate age, its capacity and any earlier repair records ready. Note any recent changes in water pressure, unusual damp patches near the tank, or a sudden rise in water use. Clear the area around the access cover and make sure the gate or door to the plant space is unlocked at the agreed time. If a building has more than one tank, list them separately so each can be recorded and checked in turn. This preparation keeps the visit focused, reduces time spent on access and gives a clearer basis for any decision about repair or coating.

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 pump runs for longer periods
• A noticeable drop in the water level overnight
• Damp or salt marks on the tiles above the tank
• The tank needs refilling faster than usual

Where the problem usually comes from

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

Tools and methods, and when we use them

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.

Al Taawn in facts and sources

Common questions about underground tank leak detection in Al Taawn

Common mistakes we see

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

The written outputs

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