Underground tank leak detection for residential buildings in Al Swydy, Riyadh

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

Before we start: what we know about Al Swydy

The centre of Al Swydy is at 24.5912, 46.6730, about 13.6 km from the centre of Riyadh, with an approximate radius of 3.2 km. The approximate area shown on the map is centred here. Al Swydy has both villas and apartment buildings.

The centre of Al Swydy sits about 619 m above sea level (SRTM open elevation data). Main roads in or near Al Swydy: Southern Ring Road, Al Suwaidi Tunnel, Al Suwaidi General Road.

The nearest wadi channel is about 0.2 km from the centre of Al Swydy (OpenStreetMap).

Is it possible for an underground water tank in a residential building in Al Swydy to leak without anyone noticing? Yes, and that is exactly why property owners ask about it. Al Swydy has both villas and apartment buildings, and in a neighbourhood with such a mix, a tank that loses water quietly can affect the whole building's supply and the structure beneath it. The area sits about 13.6 km from the centre of Riyadh, with an approximate radius of 3.2 km, so many homes here rely on tanks that have been in service for years. The centre of Al Swydy is at 24.5912, 46.6730, and sits about 619 m above sea level, which is useful context for any technician arriving to survey the site.

The inspection usually begins with a review of the tank's age, its access points and any recent changes in water bills or pump run times, since these often signal a loss before the damage is visible. The technician then checks the internal surfaces for cracks, flaking and signs of wear. Where a coating has deteriorated, internal tank coating is priced at SAR 25–70 per m², and the inspector will normally note the surface area affected so you receive a clear basis for any repair decision. Because the nearest wadi channel is about 0.2 km from the centre of Al Swydy, the inspector will also look at drainage around the tank and the surrounding ground, since water movement outside a tank can mask or mimic a leak.

Before the visit, gather the building's plans or any records showing where the tank was installed, along with previous repair invoices and water consumption figures for recent months. Clear the area around the access cover so the technician can reach it safely, and make sure the pump room or valves are unlocked. Tell the inspector about any damp patches, unusual smells or sounds near the tank, and mention whether the building is a single villa or an apartment block, as the layout affects how the survey is planned. With these details ready, the inspection can focus on the likely problem areas and give you a clear picture of the tank's condition.

For a whole building, a survey of the shared systems comes before unit-by-unit work.

Signs that call for underground tank leak detection

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

• The tank needs refilling faster than usual
• Damp or salt marks on the tiles above the tank
• A noticeable drop in the water level overnight

The most common causes

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

Tools and methods, and when we use them

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 Swydy in facts and sources

Questions from Al Swydy

What we advise against

• Waterproofing the tank before confirming the loss is from the tank and not the line
• Ignoring the float valve

The written outputs

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.