I am thinking to point my penductors straing down behind the rock pile. Also plan on redoing the pile a little to open it up a bit. I have some ideas. Any one have their main returns like this?
I have mine branched on both sides (2 returns). One of each side points behind the rock. the other points along the side glass. It keeps the detritus right in front so it can be blown up and out by my streams. I see very little in the caves.
