I completely understand your point there, if I had done it, I would have never put the wye on its side either... Even with a bunch of waste coming down it doesn't seem like any is dropping into the tank however... The wye isn't perfectly flat, but it's not dumping into the top of the drain either.
The most unfortunate thing is how much work it would be to fix a simple problem like that.
Thanks for your help, I'm going to install the check valve asap.
The most unfortunate thing is how much work it would be to fix a simple problem like that.
Thanks for your help, I'm going to install the check valve asap.