born2lovefish said:Actually the pump is cheap. I have a extra one I use to use for automatic water changes at my old house. It was plumped into a 70 gallon water tank. Now I want to use the pump for make a filter. Is it possible to have too high of a flow rate for the bio balls?
Yes, but w/ 6" ID PVC you definitely won't overwhelm the balls w/ your setup (unless it is some uber-sized jacuzzi pump!). What size hose barbs? (3/4" or 1").
You're using CPVC service drain stuff, right? Or is it ABS? None of that stuff is cheap in that diameter! I would believe chefkeith is right on the dollars saved versus DIY difference in this case.
I've got some unused pumps, too, and I'm just trying to figure out what to do with them rather than have them sit around. We think alike! My problem is that I would end up with some Rube Goldberg or Heath Robinson affair rather than the neat and simple PVC setup you are thinking of, B2L.
On a side note, your idea would make one heck of a CO2 (or ozone, etc) reactor!
v/r, N-A