Looking for resin spec’ed for efficiency 4000-5000 grains/lb salt

Which resins, 10% cross linked, have this SER?

Thanks!

 

Kind of a difficult question to answer. most resins can get close to that spec but they require very low salting and the potential for hardness leakage, higher water waste etc. all have to be taken into consideration. Most resin manufacturers post their efficiency specifications based on how much salt is used per ft3.

Here is a simple explanation. https://view.publitas.com/impact-water-products/2018-catalog-final/page/66-67

When using ultra low salt settings Upflow brining or a second backwash can help mitigate some of the problems.