Roof tank leak detection for restaurants in Khobar

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

Before we start: what we know about Khobar

Khobar is about 1.8 km from the sea coast (OpenStreetMap). The centre of Khobar sits about 9 m above sea level (SRTM open elevation data).

Team note on Khobar: Kashf teams serve this city and its nearby districts with the same documented inspection standard: device-based leak detection without demolition, a written report, and a clear scope before any work begins..

A restaurant owner in Khobar often discovers a roof tank problem only when the kitchen starts running short of water or a staff member notices damp patches on the ceiling below. The tank may have been sitting on the roof for years, quietly losing water through a seam, an overflow pipe or a corroded fitting. By the time the leak shows, the owner is usually juggling service hours, supplier calls and an unhappy dining room, all while wondering how much of the problem sits in the tank and how much in the building below.

The local facts shape how this should be approached. The centre of Khobar sits about 9 m above sea level, so buildings here are not on a high hill, and pressure in roof-fed supply lines depends on the height of the tank above the kitchen. A small change in water level can change how well taps and dishwashers perform, which makes a leak harder to spot by pressure alone. Khobar is also about 1.8 km from the sea coast, so the salty, humid air reaches roof structures and fittings. That combination of coastal air and a tank that sits in the open means steel supports, ladders and inlet valves deserve a closer look than they might in an inland city. Tank internal coating is priced at SAR 25–60 per m², so an owner should expect the cost of re-coating to depend on the tank's surface area, which is why a proper measurement matters before any decision.

For a practical approach, start by isolating the problem. Note when the water level drops, whether it happens overnight or during service, and check the tank, overflow pipe and ball valve for visible wetness. Next, inspect the roof around the tank and the ceiling below for staining, since water often travels along beams before it appears. Then measure the tank's internal surface so any quote for coating can be compared on the same basis. Finally, arrange the repair in an order that keeps the kitchen running: fix fittings and valves first, then address the coating, and confirm the tank holds its level before returning to full service.

For restaurants, visits are planned outside service hours and recorded for the premises file.

Signs worth paying attention to

The following signs are worth checking before they grow:

• A stain on the top-floor ceiling
• Water on the roof around the tank base
• Repeated spills from the overflow outlet

Causes we see in the field

• Inlet and outlet connections.
• A fibreglass or polyethylene tank cracking in the sun.
• A common cause: a worn float valve.

How we choose the tool in Khobar

The steps in order

1. Inspecting the base and connections: We look at where water gathers and trace it back.
2. Level test: The level is recorded with filling stopped.
3. Float and overflow check: We confirm whether water is escaping through the overflow rather than the tank body.
4. Recommendation: Repair of the connection, the float or the tank, stated in writing.

Khobar in facts and sources

Short answers for Khobar

What we advise against

• Mistaking a float overflow for a leak in the tank body

What you get after the work

The written output: the source of the water identified: tank body, connections or float valve. The report is numbered and can be checked with its verification code.