What about some old threads I'm reading about salt crystallizing and freezing and damaging the cement? I can always spray the patio with a garden hose after swimming, but my real concern is for the cement that is right on the edge of the pool. (Cantilevered). The pool compnay that is changing my liner also said it would void the warranty of the liner ???? I thought salt systems helped make the liner last longer. Not sure who or what to believe anymore.