I am puzzled with some humidity issues... (or maybe non-issues)
I have a 2015 13 ft Scamp
(no bath). I keep a small heater set at 45 degrees, going 24/7 during cold weather to try and keep moisture down. I have all my cabinets open and the cushions on end, while is is sitting unused in the yard for the winter. There is no mold or water or moisture obviously present.
Last winter I put in a small 18 ounce RV DampRid in the camper and it produced (absorbed) water in the bottom quite well. This year... nothing is producing in the bottom of a new DampRid... sitting there for over a month. Puzzled... I put in another 18 oz. container... and for a week... nothing is happening. It feels chilled and somewhat damp... but no moisture is being absorbed.
I put in a remote temp and humidity gauge inside... it reads about 78% to a low of maybe 68% humidity from day to day, and the temps stay between 44 and 46 degrees with the help of my little heater. I Know the remote temp/humidity unit may be inaccurate... so I set it up side by side in the house with the receiver and the temps and humidity levels are the same.
I called DampRid... explained the whole thing. They did inform me that the DampRid should be absorbing moisture starting at 50% humidity levels. I told him that it reaches as high as 78% etc etc... with no change in the desiccant and no water in the bottom. He offered my money back... but otherwise... no explanation as to high humidity levels with no moisture absorption in two 18 ounce RV containers. (yes they are opened with the seal pulled off)
It has been raining here for the better part of two weeks on and off... and I go inside the Scamp
a few times a week to do things or to check the heater etc.
How is this phenomenon happening? Why last year the desiccant filled fairly well... and this year they remain dry and unaffected even with 78% humidity levels? I must be missing something here in the chemistry department?????