We're trying to choose new coping for a pool remodel that will probably include a salt system. I've heard all the horror stories about the salt tearing up flagstone, limestone, etc. Does anyone know if certain types of stone are more dense, or otherwise resistant to this problem? We are looking at Oklahoma flagstone, Calico (limestone??), or Arkansas flagstone.
Also, has anyone had any luck using sealers to delay this decay?
Thanks for any advice!