How often should i replace parts of my RO unit?

Discussion in 'New To The Hobby' started by RoTTen2TheCore, Nov 12, 2007.

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  1. 120gallons

    120gallons Astrea Snail

    Joined:
    Sep 18, 2007
    Messages:
    38
    Get TDS meter (2 input kind) and monitor after RO and after DI and change when results worsen.