DC pads question

[Clyde Hollinger]

Friends,

I ran into a new situation yesterday.  I tuned a vertical piano for a
new client, and the piano had a complete Dampp-Chaser system.  When I
checked the pads, they still looked like new, like they had never even
been wet above the water line since the tech replaced them the last
time.  The tops were completely dry, although there was water in the
tank, and that seemed fine.

Anyone have a clue on what's going on here?  I replaced the pads, and
they seemed to be working okay.

Regards,
Clyde