An important first step in engineering the correct aeration system is knowing the dimensions and volume of your lake or pond. Below are three calculations for determining this information for a circular, square or rectangular water body. Unfortunately most ponds and lakes have an irregularly shaped shoreline that doesn't fit well into either a circular or rectangular area formula. But Vertex can help you with this problem as we have access to several databases and can usually provide a scaled map of your lake free of charge. Go to Aerial Mapping or give us a call at 1-800-432-4302 and we'll help you find the size and volume of your lake and the best aeration system for it.