philfreenode;5037958; said:just want to point out, that 84 gallons of drippage a week is not a 67% water change, because your overflow from sump is removing both old and new clean water, not just old water

funwun;5038301; said:Actually now that I'm thinking about it more... how exactly does one perform a true 50% weekly water change then? Curious to see how anyone could segregate out only removing "old water" while still leaving the "new water" intact.
I also still perform bi-weekly manual 35% WC's too especially while I'm still green to the hobby and this setup.
Tristans;5053501; said:Sorry to be rude, but... where are the pics? All words...
O.K?