John Dirks Jr Posted September 20, 2015 Report Share Posted September 20, 2015 I know the limit for vertical trap arms is 24" prior to the trap under a sink. How about a shower in a basement? Can the drain pipe do a 90 then travel horizontally farther than 24" before dumping into a trap? I'm used to seeing the trap directly under the shower but recently I saw one do a 90 and off to who knows where. Quote Link to comment Share on other sites More sharing options...
Jim Katen Posted September 21, 2015 Report Share Posted September 21, 2015 In the UPC, the 24-inch rule applies to traps on all fixtures, not just sinks. I don't know about horizontal distances before you get to the trap. That doesn't seem to be addressed for a single fixture, but I'd think you'd want it to be as close as possible to the fixture. Quote Link to comment Share on other sites More sharing options...
Bill Kibbel Posted September 21, 2015 Report Share Posted September 21, 2015 How about a shower in a basement? Can the drain pipe do a 90 then travel horizontally farther than 24" before dumping into a trap? The maximum horizontal distance from a fixture drain to a trap is 30". Quote Link to comment Share on other sites More sharing options...
John Dirks Jr Posted September 21, 2015 Author Report Share Posted September 21, 2015 How about a shower in a basement? Can the drain pipe do a 90 then travel horizontally farther than 24" before dumping into a trap? The maximum horizontal distance from a fixture drain to a trap is 30". Etched in my brain now, thanks. Quote Link to comment Share on other sites More sharing options...
Jerry Simon Posted September 30, 2015 Report Share Posted September 30, 2015 How timely. . . Click to Enlarge 36.15 KB And, you can easily spit your chaw into the sink without standing up . . . Quote Link to comment Share on other sites More sharing options...
plummen Posted October 9, 2015 Report Share Posted October 9, 2015 Is it going into a p trap or an s trap? If its going into a p trap Id probably consider that to be a running trap,which we arent allowed to use around here for maintenance reasons. We arent allowed to use s traps in omaha area,but certain upc areas might be more forgiving. Quote Link to comment Share on other sites More sharing options...
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