I have been asking around as I have been traveling about the typical PSI on the spray rig while spraying compost teas. I am not an applicator and do not have a lot of experience with different spray rigs. Some say as high as 200 PSI while others say they never get above 80 PSI What type pump do you use and what is the typical PSI while applying to lawn and landscape. I understand if you are trying to reach 60 feet into a tree you will have to crank it up, but what is typical for lawn and landscape??