Per my link (http://www.troublefreepool.com/what-...se-t19192.html) I drained ~40% of the water with 425 CH. Test results today show CH of 350. Fill water is 130 CH.
The pool is 9 mths old and I'm not looking forward to draining (10 hrs) annually. There was some discussion of piping in a whole house water softener to the water line to the pool and regulating (via a valve) the amount of soft water to the auto-fill. Has anyone actually done this?
Other than the issue of soft water having a CH of 0, are there other issues with putting this into the pool. The PS guy said some softener salts could have metals.