OK I Have a fluval 403 which was second hand<came with tank....the outlet pipe had a jubilee clip on part where you usually screw up the plastic bit but yest did filter clean put it back together and now it leaks alot...not sure weather to cut my loses and buy a new filter<now>anduse the sponges etc in the new one or any one have any ideas...its leaking from the bit with the screw jebilee clip.....my lfs has a big external tetratec<biggest1 they do for £60.....