dpb wrote:

wrote:

The parts might cost $25.

Maybe less, for an aquarium pump and a timer and a little tubing and
a plastic box and a few desiccant bags.

And futzing around for several hours...

Maybe a half-hour :-)

w/ the end result being a partially evacuated window

Not, when it's over.

w/ an obvious hole in the middle...

Not, with an indexed-matched clear epoxy.

Meanwhile, $50 or so will put it back to new condition and depending on
insurance might conceivably even have some fraction covered.

I just spent $230 for the glass and a few hours labor to replace
a fogged sliding glass door panel.

10 P=.5*EXP(17.863-9621/(460+70))'initial cavity vapor pressure ("Hg)
20 W=.62198/(29.921/P-1)'initial humidity ratio (#w/#a)
30 PRINT P,W
40 P10=EXP(17.863-9621/(460+10))'vapor pressure at 10 F and 100% RH
50 W10=.62198/(29.921/P10-1)'10 F humidity ratio
60 W=.95*W'squeeze bellows
70 IF WW10 THEN N=N+1:GOTO 60
80 PRINT N,W,W10

..3741957 7.87707E-03

31 1.525878E-03 1.536647E-03

^
--- this woulda been 1/0.05 = 20 if there were no air mixing.

Nick