Underground tank leak detection in Al Nfl, Riyadh: without breaking

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

What is specific about Al Nfl for underground tank leak detection

The centre of Al Nfl is at 24.7819, 46.6731, about 7.6 km from the centre of Riyadh, with an approximate radius of 1.2 km. The approximate area shown on the map is centred here. Main roads in or near Al Nfl: Northern Ring Road, Prince Mohammed bin Salman bin Abdulaziz Road, King Abdulaziz Road.

The centre of Al Nfl sits about 654 m above sea level (SRTM open elevation data).

Underground tank leaks in Riyadh are often found late, because the most common problem is a slow loss through a cracked joint, a corroded fitting or a failing seam that never shows up as a sudden drop in the water level. For homes and small commercial buildings in the Al Nfl area, the first sign is usually a gradual change in the water meter reading or damp patches in the ground around the tank, rather than a visible puddle. Because the damage is hidden, the approach has to start with checking records and the tank's condition before any digging is considered.

Al Nfl sits at a centre point of 24.7819, 46.6731, about 7.6 km from the centre of Riyadh, and its built-up area spans an approximate radius of 1.2 km. That means many properties here are a short drive from the city core but still on a neighbourhood scale where access to the tank may be tight, with the tank often placed close to walls, driveways or shared boundaries. The centre of Al Nfl sits about 654 m above sea level, which is a useful reminder that the site is part of the wider Riyadh plateau, so the same inspection method used across the city applies here, with the access layout of each plot deciding how the work is planned. Where a tank has an inner coating, the cost of repair is shaped by the surface area involved, with tank internal coating priced at SAR 25–65 per m², so the size of the tank matters as much as the type of leak.

Before the visit, ask the service provider how they will confirm the leak before opening the ground, and whether they will explain the findings in writing. Ask what access they need to the tank and its fittings, whether the work can be done without disturbing neighbouring walls, and how they will check the water level and the meter reading over the period of the test. Ask whether the quote covers the inner coating as a separate line item, and what the price per square metre is based on. A clear answer to these questions tells you whether the provider understands the hidden nature of underground leaks in Al Nfl.

The aim is to locate the cause with instruments first, so any opening is limited to one point.

When do you need underground tank leak detection?

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
• The tank needs refilling faster than usual

Where the problem usually comes from

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

Tools we use in Al Nfl

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.

Quick comparison: facts and costs in Al Nfl

Questions from Al Nfl

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

You receive: the written level-test result and the recommended next step, in a technical report with a verification code.