It is possible that the unit needs a trivial programming change if you switch to sodium chloride because the frequency of regeneration is typically a little less with sodium chloride. This change may manifest itself as a decrease in the hardness level that is inputted into the controller. The water hardness and the number of gallons of water used will control the frequency of regeneration. Chemically it make no difference as either is effective as an ion exchange. All "salt" based water softeners work by the same principle. Everyone I have ever seen says you can use either sodium chloride or potassium chloride. Consult the manual that came with your system for further details.
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Originally Posted by Lovey2
It depends on the system you have. Our system originally took potassium, but we had them convert it over to salt when the potassium price almost doubled. As noted above, it does depend also on where your system drains outside. I'd call them and have them come and look over the unit and give you a quick tutorial on it. You can't just "dump" the product in the holding tank and you don't want to fill it to the top either. You might want to know where the breaker is that controls it...ours flipped off several times in storms. Really...with something as expensive as that unit surely was, you want to hear from them how to maintain it. They are nice people...call.
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