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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>I agree on both counts! Any incompatible parts will make your system look like Old Faithful (been there, done that) and the return water will be really tough on your purification system.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><b><i><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#1F497D'>John R. Weaver<o:p></o:p></span></i></b></p><p class=MsoNormal><b><i><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#1F497D'>Facility Manager<o:p></o:p></span></i></b></p><p class=MsoNormal><b><i><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#1F497D'>Birck Nanotechnology Center<o:p></o:p></span></i></b></p><p class=MsoNormal><b><i><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#1F497D'>Purdue University<o:p></o:p></span></i></b></p><p class=MsoNormal><b><i><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#1F497D'>(765) 494-5494<o:p></o:p></span></i></b></p><p class=MsoNormal><b><i><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#1F497D'>jrweaver@purdue.edu<o:p></o:p></span></i></b></p></div><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> labnetwork-bounces@mtl.mit.edu [mailto:labnetwork-bounces@mtl.mit.edu] <b>On Behalf Of </b>Morrison, Richard H., Jr.<br><b>Sent:</b> Friday, September 14, 2012 3:20 PM<br><b>To:</b> labnetwork@mtl.mit.edu<br><b>Subject:</b> [labnetwork] Steam Humidifier system question<o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'>Hi All,<o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'>Facilities at my labs want to run 18megohm to a boiler for humidity control in another lab. I think it should be RO water as 18Megohm water is very corrosive. Any thoughts on this?<o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'>Their suggested design would draw 0.5gmp from my supply loop and return it to the DI tank? My belief is that this return water would be contaminated by the boiler system. What do you guys think?<o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'>Rick<o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'>Draper Laboratory<o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'>Group Leader Microfabrication Operations<o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'>555 Technology Square<o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'>Cambridge Ma, 02139-3563<o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'><a href="http://www.draper.com">www.draper.com</a><o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'><a href="mailto:rmorrison@draper.com">rmorrison@draper.com</a><o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'>W 617-258-3420<o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'>C 508-930-3461<o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p></div></body></html>