After local compliance requirements are met, such as a silt fence, construction access and CBYD, your pool will be staked out with construction lines in order for you to be able to visualize where the pool will be and the elevation it will have in relation to the rest of the property. The excavation will commence directly after using transits and engineering tools in order to be able to dig within the marked area with pinpoint accuracy. Gravel is then added to the bottom of the excavated area in order to provide structural support as well as drainage beneath the future pool.