We’ve had this house and pool for just over three years. The previous owner did an owner build in 2014. The fountain and spillway material was glass stone, which was originally beautiful. However over time, the sun has caused the glass to crack, leaving build-up we can’t reach to clean (and broken glass on the pool floor ?). I had a tile cleaner come out to see if there was a professional cleaning remedy and he said it would simply be best to replace. The only other advice he gave was to stay away from “natural stone” because the salt would eventually destroy it. Does anyone have any recommendations for a new facade material?