Salt damage is a tough one to nail down, since when coping falls apart (like in Flippy's case) you can't necessarily tell if it was salt that did it, or if the stone would have done that anyway when exposed to water.
maxepr1 said:I didn't bolt down any of my equipment and for 7 years have not had a problem. They sell vibration matts if your worried about it. I also have Oklahoma flagstone and the only thing that I have found is erosion from wind. Which from the looks of it you will have also. I ended up sealing mine which slowed the erosion down.