>> Today while waiting to get my 2 lb CO2 bottle filled at a weldin
>> inquired about a 10 lb bottle. The discussion led to building a
>> system. The individual I talked to said he would be able to sup
>> bottle, valve, regulator and gauges for somewhere around $250.
>> manual system you would also need a needle valve to regulate the
>> the aquarium. FYI, I add CO2 continuously using a needle valve
>> the rate. This has worked very well for almost 3 years.
>I'm sure he could since that's close to $100 more than it would cost
>if you put it together yourself!<g>
I put together my own 20 lb bottle, plus a regulator and the
"Cadillac" NuPro needle valve for about $175.