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  Home > JCE Print > Journal of Chemical Education > Issues > 2004  > June  >
In the Laboratory
Cost-Effective Teacher
Deionized Water Watchdog
Gregory J. Edens
Department of Chemistry and Biochemistry, Long Island University, Brooklyn, NY 11201
Cover
June 2004
Vol. 81 No. 6
p. 841
Abstract
A solution is presented for the problem of filling a storage carboy with deionized water without the need for annoying reminders to close the faucet valve. A solenoid-activated valve, regulated by a spring-wound timer switch, is installed in line between the faucet and deionizing column. Existing systems can be retrofitted for under $100. The device allows for carefree filling of the carboy without flooding.
More Information
*  Citation
 Edens, Gregory J. J. Chem. Educ. 2004 81 841.
*  Keywords
 General Chemistry; Introductory / High School Chemistry; Laboratory Equipment / Apparatus
*  History
 Created:
Last Updated:		 May 2, 2004
January 21, 2005
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