The Lawn Wheelie is a must for spring topdressing. It is a motorless weed sprayer that delivers a 36" fan of solution at a rate of approximately 1000 sq ft per gallon. It features a 2.5-gallon tank, spray nozzle, shut-off valve and a ground driven pumping system that adjusts to the speed that the unit is pushed. Har-Tru Tennis Equipment 122-3676