Every Sunday afternoon, before leaving my boat for the week I always put the following breakers to OFF;
My boat is at the marina and connected to 120v/30amp.
Water Pressure Pump 12V; So there is no pressure in the system
Water Heater 120v : No need to heat water for nothing and to extend the life of the heater
Lights 12v & 120v : All Breakers are OFF
I only leave Breakers ON for the Battery Charger 120v & Fridge 12v/120v
I also remove the Water Hose from the Boat Water Inlet Connector.
My boat is at the marina and connected to 120v/30amp.
Water Pressure Pump 12V; So there is no pressure in the system
Water Heater 120v : No need to heat water for nothing and to extend the life of the heater
Lights 12v & 120v : All Breakers are OFF
I only leave Breakers ON for the Battery Charger 120v & Fridge 12v/120v
I also remove the Water Hose from the Boat Water Inlet Connector.