[labnetwork] Recirculation DI water spray guns?

[Morrison, Richard H., Jr.]

HI Mary,

We just purchased 10 new benches for the Draper Microfabrication lab, the DI from the loop enters into the bench on the supply side and exits to the return loop. The DI guns are a dead leg, we just dump the first 30 seconds down the drain and then check for bacteria every 6 months. So far so good. 

Rick

Draper Laboratory
Group Leader Microfabrication Operations
555 Technology Square
Cambridge Ma, 02139-3563

www.draper.com
rmorrison at draper.com
W 617-258-3420
C 508-930-3461



-----Original Message-----
From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Mary Tang
Sent: Thursday, January 17, 2013 2:10 PM
To: labnetwork at mtl.mit.edu
Subject: [labnetwork] Recirculating DI water spray guns?

Dear labnetwork members --

Our wet benches have "recirculating" DI guns to avoid stagnant water lines.  WIth 10 wet benches, this adds up to 50K gallons of DI water each year.  We are in the process of replacing our wet benches.  All of the wet bench providers we've spoken with have said that most of their customers are choosing to use non-recirculating DI spray guns to save 
water.   But I wonder if this may be feasible in certain lab 
environments.  Does anyone have advice and insight to offer?

Mary

--
Mary X. Tang, Ph.D.
Stanford Nanofabrication Facility
Paul G. Allen Room 136, Mail Code 4070
Stanford, CA  94305
(650)723-9980
mtang at stanford.edu
http://snf.stanford.edu



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