How do you compute volume of excavation of pond with different heights? - Answers

If you are in the planning stages, you can only be very approximate. You can draw on graph paper the bottom level and top levels, and then count the squares that are contained inside of the lines, for both of these levels. For squares that are cut by your line, I would generally count them as a half square. Now take an average of your two areas and multiply times the depth of your pond. Other quicky methods might work if your pond is round or oval shape, and you can approximate the diameter as an average of the maximum and minimum diameters. If you've already have a pond, then simply calculate your hose water rate by filling a 10 gallon and then seeing how long it takes to fill your pond.