- Joined
- Feb 23, 2007
- Messages
- 4,299
that's going trap a lot detritus.I find that a thin sheet of reticulated/porrett foam (.5" or so) lining the inside of the overflow works great to kill noise. The foam sheet acts like a ladder, giving the water something to run down instead of just dropping/splashing into the overflow box.
why do durso on the back up? you dont want the back up to be silent when the main drain is plugged for forever reason. i just use straight pipe for my back up.
