do you think there will there be any venting or vacuum problems
if the 2 toilets are installed back to back with a double combo wye
with one 4" vent
(the code in philadelphia allows us to pipe the other toilet in without
an additional vent as long as it is within 8' from a vented line)
should i use a double combo wye or a double san tee?
if the 2 toilets are installed back to back with a double combo wye
with one 4" vent
(the code in philadelphia allows us to pipe the other toilet in without
an additional vent as long as it is within 8' from a vented line)
should i use a double combo wye or a double san tee?