Mike, I don't flush the tank I just run it till its empty and put it in the barn and put a tarp over it. All I use it for is herbicide.
Next time I use it I pour in 2 quarts of herbicide an fill it with water. It mixes itself with the swirling water from the garden hose.
Next time I use it I pour in 2 quarts of herbicide an fill it with water. It mixes itself with the swirling water from the garden hose.