Shared Trap
Posted by Daryle Tilroe on April 25, 2004 at 17:28:03:

I have a question about the possibility of sharing a trap between a shower and pedestal sink. Code aside what would the problems actually be? This is of course assuming all pipes sizes, slopes, etc. were appropriate to handle the volume. The only one I can think of is hearing water some water noise from the shower drain when using the sink. Other than that what would the issues be? I have attempted to attach a quick sketch on my ftp server to clarify the situation; I hope the URL works! Aside from simplicity this arrangement would also offer the benefit of keeping the trap full on an infrequently used shower that might otherwise evaporate out.

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