[jbarkley]

I'm moving my washer in the laundry room, but I have a question about drainage. We're on a septic system here, and the current washer drains into a french drain system and is carried 200 plus feet from the house out into a field. (Apparently, this is up to code in Alabama.) My question is...When I run my new drain line to be tied into the french drain system out back, do I have to install a p-trap before connecting the drain line to the french drain, or am I safe to let it just gravity drain since there's no gas coming back in?

 

[DangerMouse]

I'd use the trap.... there may not be gas, but there could be smelly drain stink.

DM

 

[Homerepairguy]

To add to DangerMouse's reply, a trap not only stops smelly drain stink, but it also stops (or at least greatly minimizes) unwelcome live things from coming in.

HRG