Underground tank leak detection for villas in Al Andls, Jeddah

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

What is specific about Al Andls for underground tank leak detection

The centre of Al Andls is at 21.5417, 39.1332, about 4.1 km from the centre of Jeddah, with an approximate radius of 4.2 km. The service-area circle on the map below is drawn from this point. Main roads in or near Al Andls: Al Andalus Road, Prince Mohammed bin Abdulaziz Street, King Abdulaziz Road.

Al Andls is about 1.1 km from the sea coast (OpenStreetMap). The centre of Al Andls sits about 9 m above sea level (SRTM open elevation data).

Underground water and fuel tanks in villas are most often found to be leaking at their joints, inlet and outlet pipe connections, and the lower walls where moisture has been building up for years. In a coastal neighbourhood like Al Andls, the first sign is often not a dramatic drop in water level but a damp patch in the garden, a faint smell of salt or fuel near the tank cover, or a pump that starts running more often than it should. Because these problems develop slowly and out of sight, a leak can go unnoticed until the surrounding soil or the building foundations are already affected.

Local conditions shape how we approach the job. Al Andls sits at 21.5417, 39.1332, about 4.1 km from the centre of Jeddah, within an area of roughly 4.2 km in radius, and its centre is about 9 m above sea level. The neighbourhood is about 1.1 km from the sea coast, so groundwater and soil moisture can be more salty and more persistent than in inland districts. Our checks therefore focus on the tank walls and joints that are most exposed to damp ground, and we look closely at whether the internal coating is still doing its job. Where recoating is needed, the internal coating cost falls in the range of SAR 25–65 per m², and the final figure depends on the tank's size and condition once inspected.

Before the visit, it helps to have a few details ready. Tell us the tank type, whether it stores water or fuel, roughly how old it is, and any changes you have noticed in water use, pump run times or damp areas in the garden. Let us know where the tank sits relative to the villa and any boundary walls, and whether the cover is accessible. Ask us to explain how the inspection will be carried out, what will be tested and how we will report our findings in writing, so you can make a decision with a clear picture of the condition of your tank.

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

Signs worth paying attention to

These are the signs most often linked to underground tank leak detection:

• 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 — we check this before anything else.
• Cracks in the concrete tank walls or floor.
• Construction joints and corners — we check this before anything else.

Tools we use in Al Andls

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 Andls in facts and sources

Questions from Al Andls

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.