Originally Posted By: mbartels
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I came across a plumbing vent for a sink in a basement that did not extended up through the roof. Instead, it went about 5’ up from the slab and had a black plastic cap on it. Cap said In Line vent or something like that. I assume this is wrong but we all know what happens when one assumes.
Anyone out there know what these a for? It can’t be a substitute for a real vent could it?
It’s not over till you’re underground