Date: Fri, 7 Dec 2001 03:38:12 -0800 (PST) From: Scott Hieber > Isn't your basic sump (trickle filter) setup a self > leveling siphon system -- assuming it uses a > siphon/overflow rather than a bulkhead fitting?... Ah, but is it anywhere near as portable or easy to move from tank to tank?... -Y-