Since you rarely use the bathroon the water in the toilet trap probably
evaporated over time alowing sewer gas in, it will happen faster with
sinks , tubs or any drain with a trap. If the smell went away it was a
dry trap, If the smell doesn`t go away it could be a bad wax ring. The
hardest to find and fix is an enclosed cracked vent stack. But since
yours went away it was sewer gas comming in from a dry trap, just flush
once in a while.
Hi. Thanks again for your help. As you can probably tell, most of this
is new to me. Can you explain to me what these traps are for? I'm
assuming they act as some kind of "buffer" in between the house and the
sewer, but I'm not sure.
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