We bought a house that had a water softener in the basement. It drains into a crock and gets to our septic by a sub pump. In 6 months the pump has failed twice flooding our unfinished basement. I understand the pumps don't handle the salt brine for long. What can I do to get the water out/avoid buying sub pumps every six months/not damage drinking water from our well? Our basement is not a walkout.
Water softeners can drain up and out. The house I currently live in has a softener drain that runs up about 5 feet from the softener and over through the basement to the drain. So, you could drain it outside fairly easily.
I have never had a problem with it but if you are concerned about drain back you can put a check valve in the drain tube at the beginning next to the softener. Mine doesn't have any and it works fine.