Have only had these 2 in use about a month.I have another chain drive type, but it isnt anywhere close to these 2.Flawless proformance from the second i installed them.
I was running the 2 1000s stationary over 4x8 area.Now they move over a
4X10.5 area.
Using the extra 2.5X4 area for experiments on WaterFarm system and a single pot dirt grow.