Planted Tank Guru
Join Date: Dec 2002
Location: Portland Orygun
No check valve, wrong tubing, cheap regulator.
If all you want is a system that you can control with a solenoid then look for the Azoo regulator. It's on sale at one place for $56. Get some tubing, a check valve, a timer and the cylinder and you are pretty much ready to go once you also get the diffusion method.