Marc Posted June 5, 2019 Report Share Posted June 5, 2019 This is a condensate drain for an AC indoor section installed on a shelf in a hallway closet. It's vented on the suction side of the blower. Am I correct in assuming that there is no trap installed within or beneath the slab? Do plumbers ever install traps within or under the slab? Quote Link to comment Share on other sites More sharing options...
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