- Jun 3, 2010
- 40
Just wondering how concerned I should be with my hardness reading 420. Everything else seems to be in order. (Salt system with a plaster pool)
FC-4
PH-7.5
TA- 80
CYA-60
CH-420
Thanks
FC-4
PH-7.5
TA- 80
CYA-60
CH-420
Thanks