Underground tank leak detection for apartments in Al Samr, Jeddah

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

Why underground tank leak detection differs in Al Samr

The centre of Al Samr is at 21.5822, 39.2445, about 8.6 km from the centre of Jeddah, with an approximate radius of 2.6 km. The approximate area shown on the map is centred here. The nearest wadi channel is about 1.6 km from the centre of Al Samr (OpenStreetMap).

Main roads in or near Al Samr: Haramain Road, Prince Muhammad bin Abdulaziz Street, Abdullah Al Sharbatly Street. Al Samr is about 10.6 km from the sea coast (OpenStreetMap).

The centre of Al Samr sits about 51 m above sea level (SRTM open elevation data).

Al Samr sits at 21.5822, 39.2445, roughly 8.6 km from the centre of Jeddah, and its built-up area has an approximate radius of 2.6 km. Because the district lies about 51 m above sea level, many apartment blocks here draw on tanks that are not sitting in the low, flood-prone ground nearer the coast. Our first check for an underground tank leak therefore starts with the tank's position and the drainage around it, not only the tank itself. Al Samr is about 10.6 km from the sea coast, and the nearest wadi channel is about 1.6 km from the centre, so the technician will look at how rainwater runs toward that channel and whether soil around the tank has been saturated by past runoff.

What is left to the site visit is the part that cannot be judged from a map. The technician will inspect the tank's internal condition, the joints and pipework, and any staining or dampness at ground level near the tank. They will also decide whether the internal coating needs attention. Coating work is priced per square metre, typically SAR 25–65 per m², and the true area and condition can only be confirmed by looking inside. Any recommendation to recoat, repair or replace will depend on what the inspection finds, and the site visit is where that decision is made.

Information that helps the technician is worth gathering before the visit. Note the building's address and the block layout, the approximate age of the tank and pipework, any past repairs, and whether residents have noticed drops in water pressure, damp patches or unusual smells. If your building is near the wadi channel, tell the technician when water last pooled after rain. These details shorten the inspection and help the technician focus on the most likely leak points in Al Samr's conditions.

In an apartment, a problem may start in your unit or in a shared line; we separate the two before any work.

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

Causes we see in the field

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

How we choose the tool in Al Samr

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.

Facts and costs — Al Samr

Questions from Al Samr

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 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.