I had high hopes for this portable pump. The purchase was recommended to me by a close friend. I like the shut off feature when the set pressure is reached. Anyway, the bad part: the relief valve blew out after literally a month of use. I tried to turn it back but it didn't stay. Finally I glued it in place. So the pump is still running, but the relief valve is weak. I had a lot of expectations from RING, but they disappointed me. Apparently my friend had the exact same problem as me. RING, rework the pressure relief valve to make it more durable.