Filling up my RO/DI top off tank today I turned on my inline tds meter to find it at ~25 ppm. So obviously something is no longer good. My guess is the resin which i replaced not very long ago which i bought from one of our supporters so it will remain nameless. My first question is, Is this water worth keeping? I don't know how bad is too bad, and i need top off water daily. So should I buy some distilled jugs until i can get my problem solved? Second, Should i only be looking at replacing the resin of do i need to check and see what my RO is putting out? I am not sure what that should be at either so some numbers there would be of great assistance as well. I am pretty positive the resin needs replaced for sure and i am planning on buying spectrapure resin this time around but am not sure what type i need. And from what I understand, HE, is just like Beetlejuice and if you say HIS name 3 times on a question about water, he magically shows up. So here it goes, AZDesertRat, AZDesertRat, AZDesertRat!