RODI…

kweigum

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Just curious if there is a set amount of time I should change out my RODI filters and resin? I live on a well and have been using the original for over a year now….. the resin hasn’t changed colors at all…. Testing from the tap I get 100 tds…. Have a meter on my RODI going into the di I get 1tds and always 0 out….. and testing the water with my tester is always 0 after…. Just curious if there is a length of time these filters expire in?
 
No there’s no set time they can last a long time if the right care is taken but if the PSI drops, TDS meter reads anything but zero, or the cartridge turns a very dark brown then you should.
 
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