I used the potassium tablets in our softener for years and they work great. More expensive but a bag lasts about 1.5-2 mos regenerating about twice a week. One thing I found-don't fill the brine tank full with "salt" only put in one bag max. It will eventually cake and need to be taken apart and cleaned. Also setting the water level in the brine tank to max helps. Since we moved and on city water don't need a softener but it doesn't taste like well water-I miss how our well water tasted.

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Tony H
W111 280SE 3.5 Coupe
Manual transmission

Past cars:
Porsche 914 2.0
'64 Jaguar XKE Roadster
'57 Oval Window VW
'71 Toyota Hilux Pickup Truck-Dad bought new
'73 Toyota Celica GT