Can anyone help me? We just replaced our pond pump with a Beckett pond pump kit 600gal/hour...what we have is a backyard pond with a big rock in the middle with a hole drilled through it. A hose runs through the hole to the pump. When we tried to attach the pump to this hose we found the water was being driven through a hole on the side of the 2-way control valve. We tried turning the part that's supposed to restrict the flow, but it didn't change anything. Does this make sense ,and can anyone advise me?