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[APD] Diffusing CO2
Question 1. Has anyone experienced problems with running their CO2 through
their canister filter? i.e. having the motor burn up because of a loss of
siphon I guess due to a gas blockage?
i have been advised that with the water conditions in Milton MA coming out
of the tap at KH<1 GH<1 pH 9.0 to 9.4 (BTW i verified this with a chemist at
the water department and was told they add Sodium Carbonate (not bicarbonate)
to raise pH above 9 to reduce risk of old lead pipes in some of the older
homes leaching out lead) that I might need to run 4 to 5 bubbles/sec on the CO2.
When I did this I had an Eheim Professional 2 motor burnout (unit < 2 years
old). A few months later I had the occasion to pick up a Fluval 204 at a low
cost and decided to just try again. After two weeks everything is fine with
the filter and I have noticed that there are NO Visable Bubbles coming out of
the exhaust line. Before, the diffuser I was using had a pretty good
discharge of visible gas going to the top. Wasted gas?
Question 2. Wouldn't the efficiency of the diffusion significantly affect
the needed rate of injection?
rich green in miserable wet cold nasty milton, mass
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