My daughter is a horse person and is very successful in endurance racing. She uses an excellent 3-stall horse trailer that has some sleeping space to transport to races. She has a shower in one of the stalls fed by a 50 gallon tank on top of the trailer. Gravity feed from this tank, however, does not provide enough flow for a shower or other uses so she would like to add a pump.
I have identified a 110v RV-intended pump that appears appropriate. She would power the pump with a generator that has typical 110v household type electrical outlets and adequate output.
I am concerned about shock hazard. The trailer is all-metal so she would be standing in an all metal stall while taking a shower. The trailer itself rests on rubber tires so is not connected to earth and the electrics are not grounded.
I am looking at extension cords that have a built-in GFI device that she would use to connect the generator to the trailer. But, do these work when there is no true ground? I am sure contruction workers using portable generators to power tools face a similar problem.
Any thoughts on dealing with potential shock hazard??
Eric