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Aquatic Plants Digest V2 #610
Aquatic-Plants-Owner at actwin_com (Aquatic Plants Digest) said on 03/27/97 at 06:41 PM:
>2) Are pH sensing CO2 regulators worth
> the trouble and money? My biggest
> fear is somehow the unit would fail
> on and posion the aquarium with CO2.
I had just this problem. The way to prevent it is to make sure the last thing before your tank (or backflow prevention valve) is a good quality needle valve. That way if everything else fails, it will limit the flow into the tank.
Dave Gomberg, FormMaestro! gomberg at wcf_com