Quote Originally Posted by darenjones
I highly suggest to anyone else reading this, if they have vinyl, or fiberglass, to fill entirely with soft or treated water (0 hardness) the water feels incredible!
I have fiberglass and do fill with water that has 0 hardness. I have to agree. (however I do also have a heater and grouted tilework on the outside of the spillover spa with a marble spillway so I end up adding some calcium back into the water to help protect them)