A cylinder store I called has a dual gauge CO2 regulator for 42$ and I have a 20 oz paintball CO2 tank. Besides the needle valve, what else would I need to build a cheap pressurized CO2 system?
There are a ton of questions that you aren't asking... but, the first thing I see is getting an adapter to go from a 20oz tank to regulator. Silicone tubing can be bought for a few dollars a petco, or any other fish store.For the drop checker I am going to use the one from my diy set up. I will just use the same tubing until I can order from silicon tubing online. After I get everything set up and get my drop checker, I will have to see if I need a solenoid. How long should a 20 oz co2 tank last if I have it running for two ten gallon tanks?