Has anyone ever used one of these or something similar in their camper? I am building a CTC and putting in a shower and grey water tank. I was thinking about using this instead of raising the shower floor up high enough for a traditional trap. These are suppose to prevent gas and backflow. In my case, I will have a gray water tank only connected to the shower and sink and the tank itself will be vented. I'd use this and let the water drop directly into the tank with no trap so save the expense and etc. of building a raised floor to mount the shower on. Thoughts? Bad idea?
Please comment. Thanks.