Ive had the same problem with my cooler since I set it up in December. It usually stays at around 70%-72%. If I let it drop to around 65% the beads will be completely white. I spent the better part of the end of Dec and beginning of Jan messing around with it, salt testing my hygrometer, leaving the lid open, drying out the beads, and all to no avail.
I think it maybe due to the fact that its a 120qt and I only have a few boxes in there atm. Ive since begun not to worry about it and spray the beads every so often and it brings it back up to 70%. Im guessing that once I get more in there the Rh will start to even out to where its supposed to be.
But on a side note, I was wondering should I maybe just let it drop to 65% and see if it stays there even though the beads are completely white?
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