Hey, guys. Something occurred to me the other day. Vessel sinks have made it into the home centers, meaning that DIY'ers will be buying them and replacing their existing in-counter lavs with them. Most of the vanities I've seen for vessel applications end up putting the flood rim of the vessel at around 36" above-finish-floor rather than the 32" a.f.f. as one might see with more traditional lavs.
Of course, there are plenty of situations out there, such as a sink installed against a knee wall, or a sink installed under a window, where the vent for the sink goes horizontal at 38" a.f.f. (meeting the 6"-above-flood-rim rule for a 32" high sink). But replacing the traditional lav with a vessel sink with a 36" flood rim would put the vent out of compliance.
Has anyone run into this issue? Is everyone installing horizontal vents at 42" a.f.f. now to accommodate vessel sinks? I'm guessing the code councils, and generations of plumbers, didn't bet on sinks becoming 4" higher all of a sudden!
Of course, there are plenty of situations out there, such as a sink installed against a knee wall, or a sink installed under a window, where the vent for the sink goes horizontal at 38" a.f.f. (meeting the 6"-above-flood-rim rule for a 32" high sink). But replacing the traditional lav with a vessel sink with a 36" flood rim would put the vent out of compliance.
Has anyone run into this issue? Is everyone installing horizontal vents at 42" a.f.f. now to accommodate vessel sinks? I'm guessing the code councils, and generations of plumbers, didn't bet on sinks becoming 4" higher all of a sudden!