Puratek RO/DI Cartridge Question

[phi delt reefer]

Originally Posted by Madreefer

Really? I just changed all of them in the begining of Jan. My DI resin in the cartridge is kind of brown in color and only 1/4 of it has changed color to a darker brown. Thats chitty if i'm only gettting 7 months out of it at 50-60G a week.

1400 gallons isnt bad - if you arent flushing before you restart your ro then you are pushing 100+ TDS through the DI resin and exhausting it quicker. everytime you restart your RO have the water from the ro membrame (before the resin) empty into a bucket for 5 minutes. this will flush the membrane. just for chits and giggles check the tds of that water