Check valves

[schpanky]

Hi guys. I'm on the path to pressurized C02, with more questions.

I ordered a regulator that comes with a bubble counter attached. I ordered a second bubble counter that comes complete with a check valve built in. I'm going to use both (the second bubble counter is going to be suctioned to the tank). Do I need a second check valve or is it enough to have one (the one that is built into the bubble counter)?

 

[Fresh2o]

That should work. You may also consider getting another check valve down the road if for some reason you have to remove the second bubble counter.
The bubble counter/check valve combo that was shipped with the Aquatek regulator was not very sturdy. Another member reported breaking it while connecting the tubing. I experienced the same thing while tightening the lid (it was leaking between the lid and body on the unit). The plastic nipples are clear acrylic/plastic and not sturdy IMO. The Fluval bubble counter that I replaced it used polyethylene (I believe) and the tubing connectors had barbs and compression nuts so it did not rely solely on friction of the tubing alone to maintain a good seal. It did not have a check valve so I used a brass one made by Rhinox. I am also using a second check valve (low cost one from one of the big box stores). It prolly works well in low pressure applications and might be ineffective in my setup.


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[ericwithac]

Certainly doesnt hurt and you get a check valve to put in line for fairly cheap. I know my LFS has them!