Overall rating: 4.8 / 5 from 20 reviews.

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Q&A

Do I need to use carbon with this resin? My old resin was a yellowish color and my husband did not realize this is black.

No, you do not need to add carbon to this resin. The ResinTech CNS10 is naturally black in color, which is completely normal for this particular product. Most traditional water softener resins are amber or yellowish in color, but the CNS10 is a premium 10% crosslinked resin designed for increased durability and resistance to chlorine and chloramines. The black color does not mean it contains carbon. This is a complete water softening resin that can be used by itself without mixing in any additional media. Carbon filtration is only necessary if you have other water treatment needs, such as removing chlorine, chloramines, or certain taste and odor contaminants.

can I buy 1.5 cu ft?

Yes. CNS10 is available in both 1.0 cu. ft. and 0.5 cu. ft. sizes, so you can purchase one of each for a total of 1.5 cu. ft. The 0.5 cu. ft. size is sold separately here: https://uswatersystems.com/products/resintech-cns10-premium-10-crosslinked-water-softener-resin-0-5-cu-ft

With this work in any home system we have a culligan, that restricting water flow, I have tried everything else and think it’s the resin, This has not been cleaned since we moved in 7 years, I didn’t realize that was a thing until it stopped working

Yes, this resin can be used in most traditional Culligan water softeners. However, confirm the amount of resin required for your specific Culligan model before ordering. Old or fouled resin can restrict flow, but the restriction could also be caused by the control valve, distributor basket, or another internal component. If water pressure returns when the softener is placed in bypass, that confirms the restriction is within the softener, but replacing the resin may not be the only repair needed.

Can I use this resin in an Easy Water system for replacement>

Yes - this resin will work as replacement resin in any model traditional water softener.

Following up on my previous question. For a typical two bath home how often would this resin require regeneration? Is it every month, 6 months, 1 year, 5 years, 10 years? If you can't answer roughly how often then how would a typical homeowner know when to regenerate the resin, Also, what is the process for regeneration? Thanks!

In practice most homeowners see every 7–14 days because controllers are set to regenerate a little early for best water quality. If your water is harder, the interval shortens; if you upgraded to a bigger softener or have fewer people, it lengthens.