Moss Rock Waterfalls in TX--How To Clean??????
Anybody here know what to use to clean off the blackish/green stuff off of moss rock used to make two large waterfalls and line 1/2 of the pool on a notched beam? I know they are the natural 'moss rock', but the blackish/green stuff that is showing up after almost 4 years is not attractive. I'm more worried about the kids & their friends putting their hands on the stuff when they are on that side of the pool hanging on to the side. :(
Help!!! These 2 waterfalls are huge and are so pretty with the rock wall lining almost 40 feet of pool. We want the beautuful pebble lagoon without the black stuff! Help!
Thanks for any input!