I have a two pump unit and I dosed Ca and DKH 24 times a day.....Mg is not needed near as often so I just manually dosed that.....I often thought of and have heard of people dosing a diluted phyto/ coral food type mixture through one pump......the lines are just air line so I just replace those when I think to and you can clean the pumps by running vinegar and water through them(same goes for any pump).....all you have to do to prevent back-siphoning is keep the pump outlets above the water line, no check valves needed..... well worth the coin IMO
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260g mixed reef, 105g sump, water blaster 7000 return, Bubble King SM 300 skimmer, Aqua Controller Jr, 4 radions, 3 Tunze 6055s,1 tunze 6065, 2 Vortech MP40s, Vortech MP20, Tunze ATO, GHL SA2 doser, 2 TLF reactors (1 carbon, 1 rowa). http://www.canreef.com/vbulletin/showthread.php?t=50034 . Tank Video here http://www.vimeo.com/2304609 and here http://www.vimeo.com/16591694
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