i live on a saltwater canal with a steep hill in my backyard. I had an idea of making my backyard a waterfall and pull the water from the canal up to the top. my question is is this possible? I know you cant leave anything in saltwater long or barnacles and algea collect. But i am unsure if the water was constantly moving if this would happen... And also do they make pumps for this kind of application that wont destroy. Its either this or putting up a few retaining walls.... thanks.