Hardscape

[Trevor W]

Originally Posted by reefwars

there is no way a 900gph return pump is overflowing a 1 1/2" pvc drain , there has to be something else going on , a 1" drain should be more than enough let alone a 1 1/2" drain , you shouldnt have to turn down your return pump.

im running 2400gph after 3ft of head through a 1" pvc and i have the pipe restricted about half way with the gatevalve.

This was exactly my thoughts aswell!

[kien]

You may have to invest in a dremel tool if you don't already own one. Or maybe borrow one. They have a lot of attachments that you can use to cut those slits bigger. I don't know how far apart those slits are but you could maybe use a drill bit to drill holes in between the slits (at the bottom) in an effort to turn two slits into one?