Underground tank leak detection for villas in Al Taawn, Jeddah

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

Before we start: what we know about Al Taawn

The centre of Al Taawn is at 21.3509, 39.2697, about 23.6 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. Al Taawn is about 10 km from the sea coast (OpenStreetMap).

The centre of Al Taawn sits about 25 m above sea level (SRTM open elevation data). The nearest wadi channel is about 0.9 km from the centre of Al Taawn (OpenStreetMap).

Main roads in or near Al Taawn: Al Laith Road.

Picture a villa owner in Al Taawn who notices that the water bill has crept up for no clear reason, or that the garden is greener in one corner than it should be. Their underground tank sits out of sight, and by the time a problem shows on the surface, the water may have been escaping for some time. Owners of villas like this often assume the tank is sound simply because it has never caused trouble, yet buried concrete and steel tanks can weaken quietly, especially where the ground and the water table around them change.

Al Taawn sits at about 25 m above sea level, roughly 10 km from the coast, and its centre is about 0.9 km from the nearest wadi channel. For an owner, these facts matter because a site that sits near a wadi can see water move through the ground after heavy rain, adding pressure and moisture around a tank wall that is hard to inspect. The distance from the sea means the land is not coastal in its exposure, but the wadi nearby is a reason to take ground water seriously. Anyone who owns a villa here should treat a sudden change in water use, damp patches, or soft ground near the tank as a signal to act rather than wait.

Start by checking your meter readings over a few weeks, noting the times when water use is low, such as at night, so you can see if the tank is losing water when nothing is drawn from it. Next, look around the tank area for damp soil, unusual growth, or a sinking surface, and record what you see with dates. Then arrange a leak detection survey that tests the tank and its pipework, and ask for the findings in writing. If a tank wall needs protection, an internal coating is usually priced per square metre, typically SAR 25–65 per m², so ask for the measured area before agreeing to any work. Finally, keep a simple log of the tank's condition and any repairs so that the next owner and the next inspection start from clear records.

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

Signs worth paying attention to

If you notice one of these signs in Al Taawn, it is a good moment to talk to the team:

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

Causes we see in the field

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

Tools we use in Al Taawn

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.

Al Taawn in facts and sources

Common questions about underground tank leak detection in Al Taawn

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 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.