Hello,

I have a shower on the 2nd floor of my 30 year old house and I notice a sewage smell coming from the drain. :confused:

The shower has not been used in over 4 years because it has a crack in the liner (it is a fiberglass shower unit). I notice the smell when the washing machine which is on the first level of the house is in the draining/spin mode. The house has a septic system and this has been ongoing for quite some time now. :eek:

Please let me know what you think. Thank you very much for your help.

Ann Marie

"The shower has not been used in over 4 years." This tells me the trap seal has evaporated and you now have a open connection between your house and the septic tank. For traps that are no longer in use I recommend filling the trap with motor oil. This will give you a seal that won't evaporate and will still serve as a seal. Good luck, Tom