[sourdough]

Your water pressure will depend on the campground's water pressure and if the other person is using his water. You sound like the pressure is low; do you have one of those cheap pressure regulators on the line? That could be it or it could be the campground. I always carry a water pressure gauge with me to see what the incoming pressure is. As far as the oxygenics head, I installed one and removed it after the first use. It didn't improve anything and I didn't like the positioning at all. Backflow from the other trailer was mentioned; you may want to get a screw on preventer at the hardware store and place on your side of the Y just to be safe.