(Example: if your stream averages 6″ wide and 3 ... below ground level and will determine the level of the pool below the ...

Watch as we construct a stunning natural waterfall leading to a hidden underground swimming pool. A perfect blend of primitive skills and creative engineering!

A pool used to be a status symbol; something that told your peers and neighbors that you'd made it. But no longer — now you need to install gigantic waterfalls and useless reflecting pools to ...