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22 Nov 2002 at 11:49 am
#300100
Participant
Either the trap is not vented and it is siphoning out, or you have no trap. Look down the pipe and see if you see water. If not, dump a bucket in and see if it stays. If it does, you have a trap, if not, no trap.
» This message has been edited by John Aldrich on 22 November 2002