Water tank waterproofing in Aljumum: when to call a technician

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

Water tank waterproofing in Aljumum: the local context

Team note on Aljumum: 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.. The centre of Aljumum sits about 200 m above sea level (SRTM open elevation data).

The most common problem with water tank waterproofing in Aljumum is slow leakage through cracks and seams in the tank walls and base, which often shows up first as damp patches on the outside of the tank, staining on nearby walls, or a drop in water pressure that is hard to explain. Many homeowners wait until the tank is visibly wet or the water tastes changed before acting. A technician will usually start by checking for cracks, failed sealant around fittings, and corrosion on the inside surfaces, because these are the points where water most often escapes. Where a crack is the cause, crack injection is priced at SAR 40–120 per metre, and tank internal coating at SAR 25–60 per m² is a common follow-up when the inner surface has broken down over time.

Aljumum sits about 200 m above sea level, which matters for how the tank is used and inspected. At that elevation the water supply often depends on pumping and on the tank holding enough reserve to keep flow steady, so a small leak can drain the storage faster than people expect and lead to pump cycling that wears equipment. A technician familiar with the area will look at the pump and pressure settings alongside the tank itself, rather than treating the tank as an isolated structure. Because the tank is a sealed water store, any coating or repair must be checked for water safety before the tank is returned to use, and the technician should confirm which products are suitable for potable water storage.

Before the visit, ask the technician to describe exactly where they think the water is escaping and how they plan to confirm it, such as a dry-down period or a water-level test over a set time. Ask for the price basis, since rates are quoted per m² for coating and per metre for crack injection, and make sure the quote states the measured area or length rather than an estimate. Ask which materials they will use, whether they are suitable for drinking water, and how long the tank should stay empty during the work. Finally, ask what they will check on the pump and fittings while the tank is open, so the repair addresses the cause of the leak and not only the visible damage.

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

When do you need water tank waterproofing?

If you notice one of these signs in Aljumum, it is a good moment to talk to the team:

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

The most common causes

• Cracks in the walls or floor.
• A common cause: damaged old coating.
• A common cause: construction joints.

How we choose the tool in Aljumum

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 Aljumum

Short answers for Aljumum

Common mistakes we see

• Using a material that is not intended for drinking water

What you get after the work

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.