Method PT-04
Pressure Testing
Ref PT-04
Before you spend money locating a leak, you need proof one exists. Pressure testing isolates a section, applies controlled pressure and measures whether it holds. It separates a real loss from a meter fault, a filling cistern or evaporation, and it tells us which leg of the system is worth searching.
How it is applied
Four controlled steps
- 01
Map and isolate
The system is divided into legs — cold supply, hot supply, pool lines, irrigation zones — and each is isolated in turn.
- 02
Apply controlled pressure
A calibrated gauge and pump apply test pressure appropriate to the line and material.
- 03
Observe and record
Pressure drop over a set period is recorded, with ambient conditions noted to exclude false results.
- 04
Interpret and proceed
Lines that hold are excluded, and detection effort is concentrated on the leg that failed.
Best applied to
- Proving a leak exists before excavation
- Separating slab, pool and irrigation losses
- Ruling out meter and valve faults
- Insurance and defect evidence
Limits and conditions
Pressure testing locates a section, not a point. It is used first, then combined with acoustic, thermal or gas work for the pinpoint.
Used for these services
Other methods
FAQ
Pressure Testing questions
Still unsure? Call the 24/7 line or send a WhatsApp and describe what you are seeing — we will tell you what test is needed.
Can pressure testing damage old pipes?
Test pressure is matched to the pipe material and age. Where the system is fragile we reduce pressure and rely more on acoustic and thermal work.
Does a pressure drop always mean a leak?
Not always — trapped air and temperature change affect readings. That is why results are interpreted by a technician, not a single gauge reading.
Will my geyser be affected?
The geyser is isolated before hot-line testing and restored afterwards, following safe electrical practice.
24/7 dispatch · 069 268 0988
Book the method that fits the symptom
Tell us what you are seeing. We confirm the test needed, agree the fee and find the leak — with a written report and your no-find-no-fee guarantee.