I have pex tubing in the trailer with Flair-it fittings. I added a Flair-it tee then some more pex and a couple valves and adapters bringing the connection from behind the toilet to the corner where the wall and cabinet meet then up corner a little then added the hose. I use the first valve to adjust the pressure and flow depending on whether I am using the onboard pump or city water connection. This avoids the sudden burst and back splash into the face. The second is a shutoff for the hose. Unhang sprayer, valve on , spray, valve off hang sprayer. Works well for me. That's all that matters.