Re: Sylvan 2000 Spacedeck Bilge Pump
I have a 2030 Smoker-Craft commander (1998) - which is an extremely simlar deck boat - made by the same folks. Mine is an I/O so getting to my bilge is pretty easy - as the bilge area, and pump are under the motor. I would be looking for it in front of your drain plug hole. I have the same sealed deck plate which actually sits over the under the deck fuel tank in my boat.
I wonder if your boat has the same battery compartment as mine, near the transom - maybe you can access the bilge from there.