Article 1050739 of alt.home.repair:
Path: news.misty.com!not-for-mail
From: nicksanspam@ece.villanova.edu
Newsgroups: alt.home.repair
Subject: Re: Repairing BB Hole in Window
Date: 9 Oct 2008 14:18:50 -0400
Organization: Villanova University
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dpb  <none@non.net> wrote:

>nicksanspam@ece.villanova.edu 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 W>W10 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




