A couple of months ago I decided to remove the monthly-serviced water softener ($45/month) system provided by a local business. That service replaced a tall metal cylinder every 30 days with one that had been regenerated. It worked well. The downside was the monthly cost.
The arrival of an RV near us caused me to rethink our softener solution. This RV used one of these -
If an RV can use this with success, why couldn't I do the same in our "RV"? The only downside was the requirement to regenerate the system every two weeks. The upside is that the ongoing cost of the regeneration process is the cost of the "service". I have to drain the tank and add two boxes of table salt (currently 80 cents at Walmart!). So, do I pay the service $45 a month or do I pay Walmart $3.20 a month. I think the $3.20 is the best way to go. Additionally, it forced me to get out of the house.
Here are a couple of pictures of my new installation. Almost looks professional 😀!