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Chase Plumber
289 Posts
Discussion Starter · #1 ·

Section 4. (4)

What in the world does "the functioning of a drum, float" mean? And there's a comma there.. :blink:

I know what a water column is. .

We usually "final test" the DWV system with a siphoning hose rammed down thorugh the trap of a toilet, and then blow through it and if water comes back up through the lav, or fixture closest to it, they pass it.

But I was just curious to what that meant.

Thanks in advance!
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