Underground tank leak detection for villas in Al Azyzya, Jeddah

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

Underground tank leak detection in Al Azyzya: the local context

The centre of Al Azyzya is at 21.5533, 39.1944, about 2.5 km from the centre of Jeddah, with an approximate radius of 1.2 km. The service-area circle on the map below is drawn from this point. Main roads in or near Al Azyzya: King Fahd Road, Prince Majed Road, Makarona Road.

Al Azyzya is about 4.5 km from the sea coast (OpenStreetMap). The centre of Al Azyzya sits about 25 m above sea level (SRTM open elevation data).

Picture the owner of a villa with a buried fuel or water tank in the garden or under the driveway. Most of the time nothing seems wrong, the pump runs and the bills look normal, so the tank is easy to forget. Then a small drop in level, a damp patch near the tank cover, or a strong smell in the garden makes them wonder whether something is leaking underground. For a homeowner, the question is less about the tank itself and more about how to find out quickly what is happening and what it will cost to fix.

The local facts matter here. Al Azyzya sits about 2.5 km from the centre of Jeddah and covers an area with a radius of roughly 1.2 km, so most villas are close to dense urban streets, service roads and older utility lines. The area stands about 25 m above sea level and lies about 4.5 km from the coast, which means it is not at the waterfront but is still close enough for coastal air and ground conditions to shape how buried steel and concrete age. These are general conditions, not proof of a fault, but they are good reasons to check a buried tank routinely rather than waiting for a visible problem.

If you suspect a leak, work through the steps in order. First, record the tank level and your usage for several days so you have a baseline. Second, check the area around the fill point, vent pipe and access cover for wet soil, staining or fuel smell. Third, have a qualified technician test the tank and the connecting pipework before deciding on repairs. Fourth, if the tank lining is damaged, ask for a written quote for internal coating, which is typically priced at SAR 25–65 per m², so you can compare the area involved against the cost of a replacement. Finally, once repairs are done, keep a simple log of readings so any future drop is spotted early.

Villas often have several lines and tanks; we test them one at a time so the cause is clear.

When do you need underground tank leak detection?

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 most common causes

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

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.

Quick comparison: facts and costs in Al Azyzya

Common questions about underground tank leak detection in Al Azyzya

What we advise against

• 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.