Slime seems to work well if you don't know where the leak is, otherwise a plug. Seems that I replace both tires about every 700-800 hours. I've noticed better quality lawns by using older tires with less treads, so do whatever you can to make them last. Also, when a new truck is added, we immediately buy an air pump for it and check pressure a few times per day.
Landscape management, design, and installation
Horticulturalist with Specialization in Landscape Management
25 years old 7 years in business ownership