What it is
The water main comes through an oversized, open hole in the brickwork and isn't clamped to the wall.
Why it matters
An open hole lets in water, pests and vermin. An unclamped pipe takes stress at the joint every time the water hammers.
How we check it
We look at every pipe, cable and duct where it goes through an external wall.
The fix
Clamp the pipe and seal the penetration with a suitable sealant or collar.
How common it is
Service penetrations (air-con, NBN, conduits, water pipes) were left unsealed in 19% of homes at handover.
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