Is there any suggested maintenance for the switching valve assembly used with the Lachat cadmium columns?

Document ID

Document ID TE6375

Published Date

Published Date 27/05/2017
Question
Is there any suggested maintenance for the switching valve assembly used with the Lachat cadmium columns?
Summary
Switching valve maintenance
 
Answer
Switching valve assembly (Catalog Number/Order Code 24927) maintenance
 
The switching valve ports should be rinsed thoroughly with deionized water once a week.
Thoroughly clean spills on the switching valve immediately.
 
1. Remove the cadmium column from the switching valve. Be careful not to introduce air
into the column.
2. Turn the switching valve to the closed position.
3. Connect a pump tube line to one port of the valve and run deionized water through it
for two minutes. Connect the outlet to a waste line or allow the deionized water to drip
into a beaker.
4. Repeat for the three remaining ports.
5. Turn the switching valve to the open position.
6. Repeat steps 3 and 4.