co2 equiment question

[keenfish]

i notice for a basic co2 construction the 2 most expsensive parts are the can and the regulator so im wondering i think i found a cheaper way round it is to use welding parts like the regulator which i seen half the price is this good or not advisable

 

[aqua_chem]

They are the same part really. If you do decide to use a normal regulator, you will need to buy the solenoid, needle valve, and drop checker separately.

 

[keenfish]

They are the same part really. If you do decide to use a normal regulator, you will need to buy the solenoid, needle valve, and drop checker separately.

???? im lost, i see there a few more bits to it, what are those parts????

 

[aqua_chem]

Needle valve allows for fine flow adjustment, solenoid allows the tank to be automated, bubble counter (not drop checker as I originally said, but you'll need one of them too) allows you to see how much CO2 your putting in the tank.