The Planted Tank Forum banner

How long does DI resin last?

4.2K views 8 replies 8 participants last post by  ddiomede  
Yes how much water is run through it and compounded by the TDS of the incoming water to the DI resin.
Agreed, and naturally occurring CO2 in the tap will burn thru DI resin faster as well. I make about 50 gallons RO/DI about every two weeks with high CO2 at the tap(well water), incoming TDS 10-20 depending on time of year. The anion resin last about 18 months, cation last forever, about 3 years now on my water.

Cheers