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[APD] Re: AAS Check Valve
SH: "Some combo-regulator assemblies have a check valve built in and
there's no need for more than one."
I have a bubble counter with a built-in check valve at its base. Whenever I
opened the bubble counter to add water, capillary action inside the CO2
tubing siphoned water out of the aquarium. So I added a second check valve
in the CO2 line. I used a plastic Tetra airline valve and it works fine.
The JBJ combo unit includes a check valve, which I assume is at the base of
the bubble counter. The Milwaukee does not include a check valve, which
raises the question about the water from the bubble counter itself getting
into the regulator assembly. Except for that one 'feature' I'd be getting a
Milwaukee combo unit.
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