My boat uses the Jabsco pump
that's similar to the one on sale at this site, for $100 I'd rather replace than rebuild a macerator pump, actually it's better than that 'cause a rebuild kit is probably at least $40. Rinse and pump dry the tank many times prior to starting this task. If the pump is not working after a long lay-up or period of non-use, look for a screwdriver slot on the end of the shaft to turn the pump, it may just be "stuck".
