Saw an interesting device in the home store today. Replaces the need for a
vent on a drain line. Essentially a 6" nozzle with a one-way valve to let
air in but not out. Probably been around for a while, but first time I've
Has anyone tried one of these? I daren't ask whether it meets code.....
Presumably would only be workable in an accessible situation such as a sink
Lots of info here:
Yes, it must remain accessible.
Code acceptable? Depends.
We don't have a "National" Code (US) and
big differences exist between regions of the
Won't replace the stack vent, but can be used
on individual fixture traps.
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