I'm using parts from these guys, maybe you can source them elsewhere.
http://www.spectrapure.com/St_PTD_p0.htm

bandit, not to highjack but in you controller plans have you considered continuous water changes such as RC TOTM,

(how it's not a highjack is you would need SW compatible valves and for sparing etc, might be easier just to go with one type of valve)

Yes auto water changes are also in the thought stages. I just havn't figured out how to effectively keep a mix of fresh SW made. What would be the cat's Meow would be to have a Salt hopper and a auto salt adder. SG meter feedback yo a auger feed style hopper. Wonder if I can make THAT fit under the kitchen sink LMAO.


Incase someone wondering, I do not mind working on my tanks, in fact, I love it. BUT, I work out of province for 21 days at a time. The Mrs is also buisy, with going to school, and raising our Daughter. The automation is as much for her ease, as it is my need to tinker. I know I am going WAY overboard, but what is Marine Aquaria without Excess????