Join Date: Sep 2005
Location: Vancouver, B.C., Canada
Shuks, just a word of caution... if you're considering the all in one Milwaukee regulator, bubble counter, solenoid, and needle valve, myself and a number of people have had major problems with the needle valve and getting a consistent bubble rate. I had a major disaster in my tank because of it.
Consider going for a higher end regulator or at least a better needle valve.
The bubble counter can be easily made. I used a DIY bubble counter to calibrate my pressurized system.
You may also want to get a pH controller to hook up to the solenoid. This way you won't have to worry about the pH crashing or changing too much. Standard silicon tubing also works, but is slightly less efficient than neoprene.
By the way Big Al's will match any price and beat it by 5%. Good luck!!