I need to replace the 3/4" head intake hose. Hayden you asked a similar question a few year ago. Has anyone done this before? My main concern has to do with pulling the new line through the hull liner to the head. Also, what type of hose should I use. The existing is a Shieldflex premium water hose model 100-0340. The only hose I can find with this model number is from MPI.