I have three valves on my suction side, one for the main drain and one for each of the skimmers. I accidentally closed all three valves with the pump running for about a couple of seconds and then opened the valves back. Right after this, the pump is moving little water, like if it had a suction side leak. It's so bad that the pump basket isn't even close to filling up. Has anyone seen this happen before? Did I damage my valves?