"Eight years ago we did our first [EarthBuster job], and that’s one’s still for sure working. Most of the systems that we’ve aerated over the years are still working. I think there’s maybe one or two that we had to go back because of the hydraulic load, where the systems just weren’t big enough to handle all the people that were living there, so we had to put in a bigger system. But our oldest one is 8 years, and we’ve had good success."
From a phone interview with Dervin Witmer, owner of Dig-It Excavating, Cassopolis, MI