i'm doing a salt test on my hygrometer right now. its been in the bag with the salt/water mixture for 3 hours now and it already reads 75%. now my question is, i just put 65% beads in my cooler last week and the hygrometer has been reading 69-70% humitity. do i need more beads or do i need to wait till the end of the 8 hours for the test to be completed before i make any changes. btw, my cooler is a 16 quart and i am using 2 onces of beads. by my calculations that is more than enough for this size. what do you think is up?