Just bought 2010 Pro 175. I am having a problem with the livewell. I turned the aereator pump on, and I can hear the pump running, but no water is coming in. Is there more than one pump? Also, I assume the drain in the bottom of the livewell is a drain, but with no water in the well I can't be sure. Can anyone tell me how the livewell works, and if there is really a problem or I am just slow? Thanks.