Water tank waterproofing in Sabya: preventive periodic check

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

Before we start: what we know about Sabya

The centre of Sabya sits about 40 m above sea level (SRTM open elevation data). Sabya is about 16.7 km from the sea coast (OpenStreetMap).

Team note on Sabya: 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.. Main roads in or near Sabya: King Fahd Road, King Abdulaziz Road, King Abdullah bin Abdulaziz Road.

Do you really need a water tank checked when nothing seems wrong? In Sabya, many owners assume a tank that holds water is a tank that is sound, but a periodic check catches the small problems before they become costly. The centre of Sabya sits about 40 m above sea level, and the town is about 16.7 km from the sea coast, so the area is inland and dry for much of the year, which means tanks are often filled and drained on a regular cycle. That routine can hide seepage at seams and corners until staining or damp appears elsewhere in the building.

A preventive inspection looks at the tank's internal surfaces, its joints, its cover, and the connections where pipes enter and leave. The technician checks for hairline cracks, flaking or blistered coating, and any patches where the lining has pulled away from the walls. Where a crack is found, it is measured in metres so the repair scope is clear, and the tank's internal coating condition is noted per square metre so the owner can see how much surface is affected. The inspection also notes whether the tank sits on a roof or at ground level, since roof tanks rely on liquid roof waterproofing and ground tanks depend on the sound condition of their base and walls. Findings are recorded in writing so the next visit can compare changes over time.

Before the visit, clear access to the tank and its cover, and make sure the area around it is reachable without moving heavy items. Note any past leaks, staining on ceilings or walls below the tank, or changes in water taste or pressure, because these clues help the inspector focus. If the tank was recently drained or cleaned, mention it, since fresh coatings and wet surfaces affect what can be seen. Keep any earlier repair records or invoices, as they show what was done before and where. Having this information ready keeps the visit short and gives you a clear picture of what the tank needs.

Preventive checks follow a written schedule instead of waiting for a fault.

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

The most common causes

• Damaged old coating.
• A common cause: cracks in the walls or floor.
• Construction joints.

Tools and methods, and when we use them

The steps in order

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.

Facts and costs — Sabya

Short answers for Sabya

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.