Upgrading pump and sand filter system. Pentair Sand Dollar. My problem is I don't understand the instructions or I am not strong enough or both...I am trying to attach the pump to the base. The instructions say to slide the pump foot between the claw fasteners and the release latch. Seat the pump by pushing down on it until the release latch clicks into place on the pump foot. Then put in the 2 small lag bolts. I have tried pushing on the pump but the plastic underneath does not give. Is the pump foot supposed to be on top of the release latch when you push down? I feel stupid this can't be as hard as it seems... Sally