My water hardness is off the top of the hardness charts, so the softener pellet contents really matter to me. If I use the usual sodium chloride, my softened water has quite a bit of sodium in it, and that gets dumped into my septic system every time any softened water goes down the drain. Not a good thing! Also not good for watering plants. The potassium is much safer. It tastes worse than the sodium, but then I filter either one out of the drinking water with an RO system. Potassium might not be quite as effective at softening, but I've never had to change the settings on my softener in order to switch to potassium, and the resulting water seems basically just as soft as with sodium. I'd give the product five stars if it weren't for the price. However, Walmart's price is better than others I've found. If potassium weren't in such high demand in the fertilizer industry right now, the price could come down, but I guess that's not likely to happen.
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