double pool
One of the important lessons I learned as a young watershaper is that I am not a surveyor. Working on a pool design in the hills south of California's Napa Valley many, many years ago, I found myself on a sloping lot, broke out my line level and figured I could, with some patience and care, map all of the relevant elevations and develop a suitable design based on my observations of the contours. As it turned out, I was