I bought a similar one from the RV Water Filter Store (more expensive
). I used it this past season but not very much due to health issues. Have not regenerated it yet due to the low usage. I also added a ceramic water filter upstream of the water softener. When I winterized the filter it had a large accumulation of rust. This probably took a load off of the water softener. I love the ceramic filter. It is expensive but it cleans the water very good and it is cleanable.
We are going to a new seasonal campground next year and I was told the water smells and tastes awful. Other campers said they use a water softener to make the water usable. I will see how it works next year with the poor quality of water.
P.S. Make sure you winterize the softener at the end of the season. I blew mine out with an air compressor. You can also drain the water out by turning it over with the hoses disconnected.