WOW !! Very nice !!!!!! I am in the planning stages to set up 2 tanks (60 gallon each) as well for water changes, and I like your idea of running tank water thru one, then isolating and dumping it and pumping in the new mixed water, and opening it back up. That would really help me in adding to the total gallons of my system. Can you elaborate a little on the plumbing for me? Is it plumbed from the sump and pumped back in? I really tried to figure it out in your pic, but I was distracted by all the frags !!!!
Thanks, and it looks like I'm going back to the drawing board on mine.... but thats ok cause I think you helped me do it a little better !