I am using 65% humidification beads in my humi. Last week I noticed the RH was at 60%. I added distilled water to the beads thinking the were drying out (which they didn't look bad), and checked it 2 days later and the same thing 60% RH.What can be causing this? Do I need to season my humi again because it is too dried out? I have a digital and analog Hygrometer (salt calibrated) so I believe the reading is correct.