Calcium isn't an issue with the SSR; it IS an issue with an SWCG (salt system).

I would STRONGLY recommend starting up with the SSR, and then switching to salt once you figure everything out. Go ahead and add salt and install the unit, and run it long enough to make sure it's working properly.

If you don't get a sand filter, DO order the Unicel cartridges (SSR page). What will probably be the easiest way to manage the calcium will require good filtration.

Of course, it's possible that your calcium WON'T be an issue. Watch the Taylor test videos (http://pool9.net/tk-guide/) and then post your results once you have them.