Pipe protection problems.

New construction is always a fun time for an inspector. There’s so much to look for, and not everyone will interpret code requirements in exactly the same way, which can lead to some interesting discussions. These interpretations are why it is a good idea to contact the local building department if you have any uncertainty about how a code is going to be interpreted and applied. Of course, there are times when a plumbing issue goes beyond missing something in a code book. Logic and physics have ways of working together, and there’s no fighting the reality that water flows from a point of high pressure to low, and gravity wins most arguments. I was inspecting a residential new build a little while back and spotted something that was missed.

The Code

According to section 7.6.1.9. of the Ontario

Plumbing Code (OPC), and section 2.6.1.4 of

the National Plumbing Code (NPC): OPC 7.6.1.9

Every pipe that passes through an exterior wall to supply

water to the exterior of the building shall be provided with:

(a) A frost-proof hydrant with a separate shut-off valve located

inside the building, or

(b) A stop-and-waste cock located inside the building and

close to the wall.

NPC 2.6.1.4

Pipes that pass through an exterior wall to supply water to the

exterior of the building shall be provided with:

(a) A frost-proof hydrant, or

(b) A stop-and-waste cock located inside the building and

close to the wall.

Andrew Quattrociocchi, C.B.C.O., is a building inspector with the Town of

Bradford West Gwillimbury, and a director with the Ontario Plumbing Inspectors

Association. He can be reached at quattroscorner@hotmail.com.