Water tank waterproofing in Afif: preventive periodic check

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

What is specific about Afif for water tank waterproofing

Team note on Afif: 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 Afif: King Abdulaziz Road, King Faisal Road, Airport Road.

The centre of Afif sits about 1040 m above sea level (SRTM open elevation data).

The first thing checked on a water tank in Afif is the altitude and what it means for the tank's setting. The centre of Afif sits about 1040 m above sea level (SRTM open elevation data), so tanks here are often filled and drawn at a height where the pressure and the sun both work hard on the structure. The technician begins by inspecting the tank's internal coating and the joints where the walls meet the floor, because these are the points where water pressure and movement most often reveal early weakness. Any hairline crack, flaking surface or soft patch is noted before anything else is measured, so that the preventive check focuses on what is most likely to fail first.

Several items are left to the site visit, because they cannot be judged from a description. The actual condition of the tank walls, the depth of any crack, whether the coating has lifted from the concrete and whether water is seeping behind it all require direct inspection with the tank drained and dried. The technician also decides whether the tank needs a full internal recoat or only localised repairs. Where a crack is found, the length to be treated is measured on site, since crack injection is priced by the metre and the length determines the job. Pricing for internal coating is set per square metre after the actual surface area has been confirmed, and no estimate is final until that measurement is taken in person.

To help the technician, the household should note when the tank was last cleaned or coated, whether water has ever been found on the outside of the tank or on the roof beneath it, and any change in taste, colour or water level that has been noticed. Access matters too: the technician needs a clear route to the tank, a way to empty it safely and a dry, ventilated space to work in. Reporting these points in advance lets the visit move straight to the inspection itself, and it gives the technician a clear picture of how the tank has behaved in Afif's climate over time.

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

Signs worth paying attention to

These are the signs most often linked to water tank waterproofing:

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

Causes we see in the field

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

How we choose the tool in Afif

How the work is done, step by step

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.

Afif in facts and sources

Short answers for Afif

Mistakes that cost more

• Using a material that is not intended for drinking water

The written outputs

The written output: the material name, its batch number and the fill-test result. The report is numbered and can be checked with its verification code.