In case it might help: mine has two fuses, one inside the coach with a panel of other 12 volt fuses and another in the positive line about 12 inches from the pump.
Jan and Rocky
Volunteers USFWS. 8000 hrs each, 25 refuges. 04 Allegro 30DA, WH 8.1, Banks, 2012 Jeep Liberty , Brake Buddy Adv Select, 300watts Solar,
"Philippians 4:11-13 KJV"