Spa / Hot tub water
Did a search and could not find out about this, so I will ask.
Brother N Law is giving us there old hot tub, big 6 person one. Heater went out. and they are getting a new one. I put in heaters in hot tubs before, no trouble in doing this. What I just built a new home for my self to live in and I have city (HARD Water 14 GPG with a little iron). I have put in water filters and water softening system (GXSF40H GE) Do I fill my hot tub up with that (slowly not to over work the softener) or just hard city water? and is there salt water systems for hot tubs too?