G goodgene Gambusia MFK Member May 28, 2008 151 2 16 35 Asia Mar 27, 2010 #1 how does it work? how does the water travel down into the sump?
F Firebird Feeder Fish MFK Member Feb 28, 2010 55 0 6 Shelbyville IN Mar 27, 2010 #2 The water flows through these.
spwd Fire Eel MFK Member Jan 20, 2008 4,505 5 68 55 leicester,england Mar 27, 2010 #3 What he said and then your pump pumps it back into the tank after going through your sump. steve