Concerned about venting 6 volts
How do the 5th wheel owners install their 6 volt batteries in their units? It's about time for me to replace my 5th wheel Toy Hauler batteries. I currently have 3 12 volt UPS gel batteries I acquired through work in a large front compartment of my trailer. I know the 6 volt Trojans are the way to go and I have room for 4, but I need to be concerned about venting the gasses? The trailer came with a single battery sealed in a battery box with an incoming vent hose from the outside and exits to the bottom of the trailer. I can't find this type of setup anywhere for Trojan sized 6 volt batteries. If the venting will be a problem, I was thinking of going with 4 Optima 12 volt batteries (expensive) and use the conventional battery boxes as I do now because my UPS batteries are sealed. Any advice would be appreciated.