View Full Version : anion resin confused

02/18/2011, 06:48 PM
i have a question i just recharged some resin i have a double di the first di i put in a canister of anion resin only cause i think im having silicates getting threw i ran the water for about half hour to clean out the anion but couldnt get the tds to drop any lower then 12 but ro incoming tds is 10 why would the anion output be higher then the ro output tds i put in a mixed bed on the second di stage that brings it down to 0 tds and thats good but i just dont understand that i have 10 tds coming out the ro but 12 tds coming out the first stage di witch is pure anion shouldnt it be lower then the ro tds ?

Buckeye Hydro
02/18/2011, 07:44 PM
Yes. TDS out of the anion resin should be lower. Maybe there is an issue with your recharge, or with your TDS meter?

You should have that anion resin AFTER the mixed bed.