| I use to run two model 30 TMC UV's on a loop on a 7x2x2 system for a few years, then took them off and it has made no difference to the way the system behaves at all.
And like Tiggerbiker said they do need to be cleaned regularly to be effective.
__________________
To infinity and beyond (so long as i'm back in time for me tea)
Helium provides only sobriety, neither experience nor bouyancy skills! |