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post #9 of (permalink) Old 05-04-2007, 04:44 AM Thread Starter
Are these real?
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Originally Posted by original kuhli View Post
I have an additional ideas that I've yet to test...

The central theme is using the constant outlet pressure of the CO2 system and a solenoid to pressurize a fertilizer bin and deliver a set volume of fluid to the tank/closed plumbing system. The costs would include solenoids for each of the two fert bins, the bins themself and checkvalves for each. This is the system I'd like to use on my tank buildup but I've not had time to test it.

Also, the failure of my solenoid open has made me rethink this...
I think that approach falls under the Airpump 2 category. Problem with this concept is the cost... You can get a dual outlet airpump for $10, while two solenoids and two needle valves will be quite costly.
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