Underground tank leak detection for villas in Bny Malk, Jeddah

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

Why underground tank leak detection differs in Bny Malk

The centre of Bny Malk is at 21.5315, 39.2190, about 5 km from the centre of Jeddah, with an approximate radius of 2.6 km. The service-area circle on the map below is drawn from this point. Bny Malk is about 5.5 km from the sea coast (OpenStreetMap).

The centre of Bny Malk sits about 25 m above sea level (SRTM open elevation data). Main roads in or near Bny Malk: Haramain Road, Prince Majid Road, King Abdullah Road.

Picture a villa owner in Bny Malk who has just noticed that the water bill has crept up and the garden tap runs cooler than it should. They suspect something is wrong below ground, but the underground tank is out of sight, and nobody wants to dig up a driveway on a guess. Many owners in this situation wait until the damage is visible, which can mean a larger repair than was necessary.

Bny Malk sits at 21.5315, 39.2190, roughly 5 km from the centre of Jeddah, with an approximate radius of 2.6 km, so most villas here are a short drive from the city yet still in a settled residential pattern. The centre of Bny Malk sits about 25 m above sea level, and it is about 5.5 km from the sea coast. For an owner, this means the site is not on the low coastal flats where groundwater is always close to the surface, but it is also not so far inland that conditions are simple. Sealed tanks here need a clear check of their condition rather than an assumption that they are fine because they are new.

A sensible approach starts with the simplest checks and moves to the more involved ones. First, record your water meter reading at a set time and compare it again after several hours with no taps or appliances in use; a rising figure with no demand points to a leak. Second, look at the tank's internal coating, since the cost of recoating is typically quoted at SAR 25–65 per m², so ask for the internal surface area in writing before you agree to any work. Third, arrange a proper inspection of the tank and its inlet and outlet pipes, and request a written report that states exactly where the fault lies. Fourth, once the source is confirmed, agree the repair scope, the materials and the timeline before work starts. Keeping these steps in order protects your budget and avoids unnecessary excavation.

In a villa, tanks, the roof and the yard lines are usually yours to look after, so it helps to know where the main valve and tank hatches are.

When do you need underground tank leak detection?

If you notice one of these signs in Bny Malk, 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

The most common causes

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

How we choose the tool in Bny Malk

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.

Bny Malk in facts and sources

Questions from Bny Malk

Mistakes that cost more

• 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.