i did a standpipe and it stopped the noises. I would do that esp if you don't want to change design. there are several standpipe designs; durso, stockman, and the gurgle buster
I tried the durso and its way to fast for my pump and its rated for way over 200GPH (my pump).
Last edited by newbieplanter; 02-04-2013 at 12:32 AM.
Reason: Added more