Eugene Posted March 30, 2018 Report Share Posted March 30, 2018 Has anyone tried reverse undergravel sand filters where the powerhead inlet is filered with a big sheet of black sponge.It would seem to be ideal and have huge capacity Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.