Plumbing pressure test before concealing pipes
On your checklist as: “Plumbing pressure-tested before concealing”
Why — act while you have leverage
A concealed joint that weeps will be found by a stain on a finished wall. Testing before covering is minutes; finding it afterwards is a wall rebuilt and a room repainted.
What to look at
- A gauge reading photographed at both ends of the hold
- Every concealed run tested, not a sample
- Test done before plastering, not after
- Pressure test record with gauge photographs
Documents to ask for
- Pressure test record with gauge photographs
How to check it yourself
Concealed supply lines are pressure-tested and held before chasing is closed, with the gauge photographed at the start and end of the hold. Drainage lines are tested for water-tightness separately.
Where this comes from: NBC 2016 Part 9 (Plumbing Services); IS 2065 — code of practice for water supply in buildings (indian standard or building code)
More electrical and plumbing checks
- Photograph before this is covered
- Earthing installed and tested, and the record kept