Yard Scraper HELP ! How To Level Sloped Yard For A Quick Set Pool 16 Round .?

HELP ! How to level sloped yard for a Quick Set pool 16 round .? - yard scraper

What is the best way to know if this level. We have a lot of dirt and sand, we also have a tractor with a shovel and a box-scraper, my husband only to learn how to use it.