I purchased this book after a tropical storm or hurricane knocked over some trees at my mother's home. When I got to her home, a couple days later, I had no clue what I was in for. The first order of business was to cut the tree into pieces which I bundled so the town could come pick it up. When I got down to the rooting system I had to tell my mom that her sprinkler lines were busted by the tree's root system. That is when she told me that when I was done with the tree, she was going to tell me that her sprinklers were also not working since the storm. Having never worked on a sprinkler system ever, I feel the book had everything I needed to know to ensure the proper steps were taken in the proper order. Working in ships engine rooms since the mid 80's I gained basic PVC skills but, this book filled in all the gaps, specifically when it came to sprinkler heads. Due to this book I replaced several sprinkler heads with ones that were better adapted for doing specific jobs. For example no one needs a 360 degree sprinkler installed when it is spraying across a lawn from the edge of a driveway. To the best of my knowledge driveways do not grow better with water, so I installed 180 degree rotary heads. The book also helps you gain a working knowledge of specific tools for the job and I am all about having the right tool for the job. Fast forward to the year 2020: Since I have had these tools and knowledge, I have built a water park for the kids in the backyard this year . #BeatingThePandemic. #NoMoreHostages ( )