I bought it to run two sprinklers at the same time. It worked fine the first day when I tested it for 5 minutes, albeit, the adapters leaked pretty badly. I planned to buy teflon tape to fix the problem. However, when I turned it on, after priming it again, the next day it not only did not work, it killed what water pressure I had. Whereas without the pump, I had decent pressure for 1 impact sprinkler, with the pump on, even that would not work. Perhaps I just got a lemon but "once bitten, twiceSee full review