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Old 10-04-2020, 04:34 PM   #7 (permalink)
Hank Junior
Join Date: Oct 2020
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Default Re: CO2 Diffuser

Incidentally, though I have noticed the manufacturers recommend a minimum pressure of 30psi (2 atmospheres) and they warn that a diffuser may not work at too low a pressure - my diffuser does work perfectly at 1 bubble per 2 seconds, when it is clear of water, or partially filled with water. Have had it working as low as 1 bubble per 5 seconds, so I can't see how that is the cause of the problem I have. At any pressure I suspect that when I switch off the CO2, the water will start back filling the diffuser and tubing.
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