Water tank waterproofing in Dhahran: when to call a technician

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

Why water tank waterproofing differs in Dhahran

The centre of Dhahran sits about 16 m above sea level (SRTM open elevation data). Dhahran is about 5.9 km from the sea coast (OpenStreetMap).

Team note on Dhahran: 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..

Should you call a technician the moment you notice damp on a tank wall? In Dhahran, where the centre sits about 16 m above sea level and the coast is roughly 5.9 km away, a rooftop or ground-level tank is exposed to dry, dusty air and strong daytime heat, so small signs of seepage can grow quietly. The short answer is that you should call as soon as you see staining, flaking coating, or a damp patch on the tank's outer or inner walls, rather than waiting for the water supply to change. Early attention keeps the job smaller and the cost easier to plan.

When the technician arrives, the inspection usually follows a clear order. They first check the tank's surfaces, looking for cracks and places where the existing coating has lifted, and they mark any line that is still moving water. They then confirm where the leak starts before recommending a method, since the right fix depends on the cause. For cracks, crack injection is priced at SAR 40–120 per metre, while tank internal coating is quoted at SAR 25–60 per m². Where the tank sits on a roof, liquid roof waterproofing at SAR 8–25 per m² or a bitumen membrane at SAR 15–35 per m² may be discussed, and the technician will explain which area needs which treatment. Ask them to show you the marked areas and explain each option in plain terms before any work starts.

Before the visit, prepare a few simple things so the inspection is efficient. Note when you first saw the damp, whether it appears after filling or during hot afternoons, and take clear photos of any stains or cracks. Clear access to the tank, its lid, and the area around it, and make sure the water level is known so the technician can inspect the walls properly. Keep a copy of any previous repair records, since earlier coatings affect what can be applied. Having this ready lets the technician give you a clear, written scope and a price range for the work you actually need.

Some signs can be watched for a few days; others need a technician straight away — the signs list above helps you decide.

Signs worth paying attention to

The following signs are worth checking before they grow:

• A tank that leaks after testing
• Deposits and flaking inside the tank
• Unusual colour or taste in the water

Causes we see in the field

• Damaged old coating.
• Cracks in the walls or floor — we check this before anything else.
• A common cause: construction joints.

Tools we use in Dhahran

From the first visit to the report

1. Emptying and ventilation: The tank is emptied and ventilated before entry.
2. Cleaning and preparation: Loose material is removed down to a sound surface.
3. Crack treatment: Active cracks are treated first.
4. Coating layers: A material intended for drinking-water tanks is applied.
5. Disinfection and fill test: The tank is disinfected and the level is monitored after filling.

Quick comparison: facts and costs in Dhahran

Questions from Dhahran

Common mistakes we see

• Using a material that is not intended for drinking water

What you get after the work

You receive: the material name, its batch number and the fill-test result, in a technical report with a verification code.