RoyR
Bronze Supporter
Ok good - looked like a flex line from here! 
PS. the problem with boulders in the waterline is cleaning / brushing them. if they do the plaster correctly, then there wouldn't be anyplace for the algea to hide, but you must still get the brush into the crevices....you will also have white calcium buildups where the mortar meets the water, but it does look good.
..and I waterproofed my entire waterfall before running it.
PS. Be aware that "matching" the colors of the stone / coping / tile will result in a very bland looking pool - add some color. People always seems to strive to match all the colors perfectly!
PS. the problem with boulders in the waterline is cleaning / brushing them. if they do the plaster correctly, then there wouldn't be anyplace for the algea to hide, but you must still get the brush into the crevices....you will also have white calcium buildups where the mortar meets the water, but it does look good.
..and I waterproofed my entire waterfall before running it.
PS. Be aware that "matching" the colors of the stone / coping / tile will result in a very bland looking pool - add some color. People always seems to strive to match all the colors perfectly!
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