[PADG:1434] Water filtration for conservation lab

[Winston Atkins <Winston.Atkins@xxxxxxxx>]

Duke University Libraries is planning
a new conservation lab and one of the issues we need to address with our
architects is how to spec out the water filtration system. I'd appreciate
advice from you all regarding: 
-- merits of deionization vs reverse
osmosis, 
-- volume (gals/minute) to request for
a large washing sink 
-- degree of purity (see paragraph below--our
architects' consultants tell us that getting 3 megohms resistance will
be difficult; RO will give us 0.5 to 1.0 megohm resistance, putting in
DI beds will give us up around 18 megohm)
-- issues of cost (initial purchase
and ongoing maintenance)
-- ease of maintenance. 

I've scouted the ConsDistList for information
and have a 1994 exchange, which includes a recommendation not to go for
greater purity than 3 megohms--too corrosive. I've also reviewed Season
Tse's CCI publication on water quality. Unhappily, it is not prescriptive
enough for me. So--I'm going public and would appreciate any thoughts or
guidance you all can provide. I will summarize any off-list replies and
post them. 
Thank you,
Winston
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Winston Atkins
Preservation Officer
Duke University Libraries
Campus Box 90189
Durham, NC 27708-0189

winston.atkins@xxxxxxxx
Ph: 919-660-5843     Fax 919-684-2855
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