Underground tank leak detection for duplexes in Alwajh
In short: In Alwajh (Alwajh), underground tank leak detection for duplexes begins with the documented tank level test and the pressure test and line isolation; nothing is opened until the position is clear. Alwajh is about 0.7 km from the sea coast (OpenStreetMap). Published price: Inspection visit, SAR 150 per visit; anything else is quoted after the inspection.
Before we start: what we know about Alwajh
Alwajh is about 0.7 km from the sea coast (OpenStreetMap). The centre of Alwajh sits about 19 m above sea level (SRTM open elevation data).
Team note on Alwajh: 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..
In a duplex, the two floors often share lines, so tests are done floor by floor.
Signs that call for underground tank leak detection
If you notice one of these signs in Alwajh, it is a good moment to talk to the team:
- Damp or salt marks on the tiles above the tank
- The tank needs refilling faster than usual
- The pump runs for longer periods
- A noticeable drop in the water level overnight
Causes we see in the field
- A common cause: cracks in the concrete tank walls or floor.
- Construction joints and corners — we check this before anything else.
- A common cause: a float valve that does not close, so water is wasted.
Tools we use in Alwajh
| Tool | What it finds | When we use it in Alwajh |
|---|---|---|
| Ground microphone and contact listening | The sound of water escaping under pressure in walls and floors | Limits: weaker with background noise and deep lines |
| Moisture meter | How far the wet area spreads behind paint and tiles | Limits: measures the effect, not the source |
| Pressure test and line isolation | Which line (hot/cold, floor by floor) loses pressure | Limits: needs working valves to isolate lines |
| Documented tank level test | Level drop in numbers against time | Limits: filling and use must stop for a while |
The steps in order
- Safety first: Tank lids and confined spaces are handled with ventilation and a second person on site.
- Documented level test: Filling and use are stopped and the level is recorded against time.
- Isolating the tank from the network: This tells us whether the loss is from the tank body or from the supply line.
- Checking the body and connections: Inlet, outlet and overflow connections are inspected.
- Recommendation: You get the next step in writing: repair, waterproofing or a line test.
Facts and costs — Alwajh
| Item | Value | Source |
|---|---|---|
| District profile | The centre of Alwajh sits about 19 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| District profile | Alwajh is about 0.7 km from the sea coast (OpenStreetMap) | © OpenStreetMap contributors (ODbL) |
| District profile | Team note on Alwajh: 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. | Kashf team |
| Inspection visit | SAR 150 per visit | Owner price list (Alwajh) |
| Tank internal coating (per m²) | SAR 25–60 per m² | Owner price list (Alwajh) |
| Float valve replacement | After the inspection | Written quote before work starts |
Short answers for Alwajh
What is the first step of underground tank leak detection for duplexes?
We start with safety first (tank lids and confined spaces are handled with ventilation and a second person on site), then documented level test (filling and use are stopped and the level is recorded against time).
How much does underground tank leak detection cost in Alwajh?
From our published price list: Inspection visit SAR 150 per visit; Tank internal coating (per m²) SAR 25–60 per m². Quantities are confirmed at the inspection.
What do I get at the end?
The written level-test result and the recommended next step, in a technical report that carries a verification code.
Mistakes that cost more
- Ignoring the float valve
- Waterproofing the tank before confirming the loss is from the tank and not the line
What you receive
You receive: the written level-test result and the recommended next step, in a technical report with a verification code.
Planning the visit in Alwajh
- If you rent, tell your landlord or building management before the visit and agree in writing who pays; the written report can be shared with them.
- Keep photos of the problem and of any earlier repairs — they help the technician compare before and after.
- Prices are in Saudi riyals (SAR); the final price is confirmed after the inspection, before any work starts.
- Have access ready to the water meter, the tank hatches, the roof and the main valve; in apartment buildings the roof keys are often with the building guard (haris).
Sources and method
- SRTM (NASA) open data
- © OpenStreetMap contributors (ODbL)
- Kashf team
- Owner price list for Alwajh
- Local pages are published only after a quality gate: real local facts, text similarity of no more than 15% with any other English page, and a claims check.
- النسخة العربية