We have had our pool filled for about a month now and we are still having issues with our waterfall. We did a dry stack waterfall with 2 scuppers and the water is bleading thru to the back of the waterfall. The company that did the waterfall is telling me that because it is a dry stack water will always go thru the stone especially when the wind blows. I was under the impression that the dry stack could have mortar applied to the inside of the waterfall where it is not noticed but prevents water from going into the actual feature. I am worried that constantly having water in there will cause the stone to deteriorate much faster. If anyone has knowledge of this or can let me know if it is normal or not I would appreciate it.