Recommendation:
Both our 8% (C800) and 10% (C800-10) resins are manufactured by Aldex, a Canadian company, out of 83% US source material. The resin we sell online is the EXACT SAME resin we use on retail installations within our local service area. The 8% resin is by no means of inferior quality. In fact, it has been our bread and butter resin for many years. We just started offering a 10% resin option in 2022 due to increased customer demand and because it is more cost effective in the long run.
Save your money and go with 8% Crosslinked if you are on a well OR you are on city water but have a carbon prefilter before your softener. Choose the 10% if you are on city water (especially highly chlorinated water), or if you happen to treat your well with oxidants that reach your softener.
Reasoning:
Oxidants such as chlorine, chloramine, ozone, peroxide, etc. are the ultimate enemy of water softening resin. Exposure of resin to greater than 1 part per million (PPM) of these oxidants WILL break the resin down over time, eventually causing a flow and pressure drop throughout the entire home or business, necessitating the replacement of the resin.
An “Aldex Rule of Thumb” is that every 1 PPM increase in oxidant levels above 1 PPM cuts an 8% crosslinked resin’s normal life expectancy (6-8 years) in half.
Higher crosslinked resins (10% in our case) are scientifically formulated to have greater resistance to oxidants, and will last longer in water with elevated oxidant levels (> 1 PPM). A 10-year case study in a residential environment with an oxidant level of 5 PPM showed a significant cost savings due to a reduced frequency of required resin changeouts over the course of the study.
While higher crosslinked resins have a higher upfront cost, that cost is more than offset by the extended lifespan of the resin, and the
reduction in needed change outs.
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