After 18 seasons, looks like it might be time to replace my livewell pump. The boat is a 2000 272 Sailfish. Does anyone know what pump is in there or what a good replacement pump would be? The concern is it needs to fit with the existing plumbing (Grady Rep. said it was 3/4 inch) and also the proper GPH. Based on the tank size (32 gal.) and height from the waterline, I am assuming 800 GPH would be good. Am trying to advance order rather than remove the old and then chase down a pump and also trying to avoid having to return if the pump I buy is the wrong one. Also, has anyone replaced theirs before, and if so, did the floor panel have to come out or is it possible to do it through the pie plate? Thanks in advance for any feedback.