I'm thinking about making a waterfall

[wiperhunter2]

Good to know, I do have some flat shell type rocks that I plan on using but I don't think it is slate. I'll try taking a pic of it to show you. I do plan on using some local rock to form the top of the water fall. Is there a certain height where it sounds best when water is falling? I was thinking 2 ft would be good but I can make it 3 ft, if that would have a better sound, when it hits the rocks below.
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