Anyone doing this? I am thinking of trying to set this up in an effort to make reefing easier.
george - that looks like freshwater top-off, or am i missing the part where you pull the dirty water out?
If you're going to use a dosing pump, I recommend trying The Marine Magic doser on Ebay.
Mike (mnat) showed these to me and he said he has one that works perfectly (for dosing, not for water changes).
Just thought I'd mention it because these are much cheaper than the Liter Meters and the Bubble Magus dosers. It even comes with a tube holder (extra for the BM and Liter Meter dosers) and it also comes with a bonus temp probe with a temp readout on the display. Can't beat that for $170 shipped!
With a turn of a ball valve I can currently pump the dirty water directly into my sewer. Then I manually pump the new stuff in. I was considering the dosing pump method.