Thanks for all the replies. Looks like some variance in the times. But I notice most clean with bleach. Is that to kill the nitrate producing bacteria, or is that just what it takes to get them clean looking again?
I use the 7" 200 micron felt type sock. But I only have 2 now, thinking I can run 1 while cleaning the other. I am surprised how many everyone is using. Looks like I may have to buy more.
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