Quote Originally Posted by bcr229 View Post
Because I am super cheap I tried an experiment based on the product linked in the OP.

I took a cheap generic synthetic sponge, brand new, and ran it through the dishwasher to make sure it was clean. A four pack of these is $1.50.

Then I dampened it and laid it in a clean plastic container with no lid. I put that into an empty 48"x38"x18" melamine enclosure under the RHP. The plastic container just was there to make sure the newspaper substrate lining the floor didn't turn into a sopping mess.

Humidity in the enclosure was a stable 35% while my house humidity is under 10% thanks to the heat pump and wood stove running full tilt at the moment.

If the sponge gets dirty it is easily cleaned and/or replaced.
so it worked well then? it looks interesting to me and honestly i wouldn't mind cleaning it out everyday or two or whatever