What is the hull id number? if it is a 99 it ok. if it is newer add pump below and wire to battery w fuse.
Boats can blister if lake has tanic acid from trees or is polluted. 
The best is a  separate bilge pump with its own battery that is solar recharged. Do not use electronic sensor bilge pumps They turn on every 5 minutes to test if water is present, Buy old style manual float switch .
MPM0010101   Pump,Bilge,AttwoodModel99,12v,2Amp           59.01 
Most important is to set shaft log so it does not drip when engine is off!!!!!!!!!!!!
Capt Rick