Definitely shut off the water supply first. Then, take out the DI cartridge and empty contents, rinse with freshwater, then add new resin. I usually run the unit for about 5-10 minutes after changing out the resins.
<a href=showthread.php?s=&postid=10812993#post10812993 target=_blank>Originally posted</a> by Nanook I usually run the unit for about 5-10 minutes after changing out the resins.
About the same...5-10 minutes. The first few minutes there is discolored water from the resin coming out. Charles at Spectrapure told me to run it for about 5-10 minutes initially to wash out the resin.
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