Hidden water leak detection for rest houses & farms in Al Mrjan, Jeddah

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

Hidden water leak detection in Al Mrjan: the local context

The centre of Al Mrjan is at 21.6875, 39.1001, about 17.7 km from the centre of Jeddah, with an approximate radius of 3.1 km. The service-area circle on the map below is drawn from this point. Main roads in or near Al Mrjan: Madinah Road, Prince Sultan Road, Al Takhayyul Street.

Al Mrjan is about 0.7 km from the sea coast (OpenStreetMap). The centre of Al Mrjan sits about 8 m above sea level (SRTM open elevation data).

Can a hidden water leak on a rest house or farm in Al Mrjan be found without tearing up the ground? That is the question most owners ask first, and the answer depends on where the property sits. The centre of Al Mrjan is at 21.6875, 39.1001, about 17.7 km from the centre of Jeddah, with an approximate radius of 3.1 km. The centre sits about 8 m above sea level, and the sea coast is about 0.7 km away. Those facts matter because a property this close to the coast can see salt-laden soil and shifting groundwater, which often hides leaks in pipes and tanks until damage shows.

The inspection starts with a walk of the property to note pipe routes, tank locations, irrigation lines and any wet patches or unusual growth in the lawn or palms. Technicians then check the water meter and supply lines for movement while all taps are closed, which helps show whether water is escaping. Where a leak is suspected underground, the team uses listening and detection equipment to narrow the spot before any digging begins. For storage tanks, the inspection looks at the internal condition as well. Tank internal coating is priced at SAR 25–65 per m², and the final figure depends on the tank's surface area and its condition after inspection. Each finding is recorded so the owner can see what was found and where.

Before the visit, gather the water bills for the last several months, since a rising bill is often the first sign of a leak. Note any areas that stay damp after rain or irrigation, and tell the team about any past repairs or pipe work. Clear access to the tanks, pump room, meter and garden taps so the crew can work without delay. If the property has irrigation zones, switch them off on the day of the visit, and make sure a person who knows the site is present to answer questions. With this done, the inspection can focus on finding the leak quickly and keeping disruption to the rest house or farm to a minimum.

Rest houses and farms often have long buried lines, tanks and irrigation that need separate tests.

Signs that call for hidden water leak detection

These are the signs most often linked to hidden water leak detection:

• A damp patch that slowly grows on a wall or ceiling
• A hissing or trickling sound in the wall after the taps are off
• The meter keeps turning with every tap closed
• A water bill higher than usual with no change in use

The most common causes

• A hot line that expands and contracts with use.
• A common cause: a corroded joint inside a wall.
• A common cause: a cracked pipe under floor tiles.

Tools we use in Al Mrjan

The steps in order

1. Meter test: We stop all use and watch the meter to confirm whether water is actually being lost.
2. Line isolation: We close valves one line at a time to see which line loses pressure.
3. Acoustic listening: We follow the sound of water escaping under pressure and compare its strength between points.
4. Thermal imaging and moisture mapping: We map how far the wet area spreads behind paint and tiles.
5. Documentation: Readings, photos and the likely position go into a written report.

Quick comparison: facts and costs in Al Mrjan

Questions from Al Mrjan

Common mistakes we see

• Repainting the stain while the moisture keeps coming back
• Breaking tiles at random before the line is identified

What you get after the work

You receive: a technical report with the readings, the likely leak position and a confidence level, in a technical report with a verification code.