Just got the tub in the water this week. Going to park it at my one of my buddy's docks. He has shore power to the dock but with a regular 120v/15a plug. Which shore power receptacle is the one I should use to just run the fridge, charger, etc: the one closest to the bow or the one closest to the stern? I tried both tonight but as soon as as I plugged it in, the GFI at the house power tripped. I was using a 30a to 15a adapter and then a regular extension cord. I'm not sure how tight the plug should be going into the boat; there was a little wiggle room there but I got the threaded coupler on without trouble. It was raining out but I tested the power with a regular 120v load and it worked fine. As soon as I put the shore power adapter on and tried to plug it in, the GFI would trip. I had the switch on my power panel to shore power. What do you do with the battery switch while on shore power; on/off? Sorry for what are probably simple questions to most of you, but I'm learning as I'm going. Should have paid more attention in shop class 35 years ago instead of dreaming about drinking whiskey and making love all the time. Any input is appreciated. Iceman