Mac, if I were to do it again I'd probably go with 2 mag-18's. I thought I was buying myself some backup by going with 4 mag-7's but once I got them and saw how much room they took I regretted my decision. The thing is, because I've got it set up with the incoming 1" ball valves I'm not sure I could get the maximum flow now using only 1 input line to the pump if I was pushing that kind of volume per pump. I may investigate the posibilities later, right now I'm just trying to get the damn thing cycled LOL
Jarvis, as a matter of fact, NASA is just a couple of miles from here and I have noticed some strange lights hovering over the house. It's possible they are attempting to hijack my ideas without paying. Lord knows, this set up was a lot cheaper than what NASA pays for space-toilets right now
Thanks guys,
Paul