"Donal" scribbled thusly:
I really do not believe that such things are capable of absorbing enough
moisture to make a real difference.

I'm not sure we're talking about the same thing, but the dehumidifier
pots we have pull several gallons out of the air in the boat over the
course of a week (but then, it is really humid here).

... I leave a couple of ports slightly
ajar, and that really makes a big difference.

All that does is equalize the humidity inside & outside the boat.


OzOne wrote:
They absorb a huge amount, however probably not all that effective
onboard.

Trick is good ventilation and pulling cushions etc away from their
bases, backs.
Stand them on edge with space for airflow between.

Yep, makes a big difference when you put things away properly.

Fresh Breezes- Doug King