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Re: [APD] Solenoids & Needle Valves

urville wrote:
> what about the needle valve. i put that into ebay and got like... pilot light gas valves and i cant tell one form the other they amazingly look alot alike. 

A needle valve is a must-have. You cannot control the CO2 well enough 
with just a regulator. Even some needle valves are too sloppy. I had one 
  where the difference between 1 bubble/sec. and 10 bubbles/sec. was 
less than 1/8th of a turn.

Jerry Baker
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Aquatic-Plants at actwin_com