For many years I used the simple water regulator like this:
I actually had 2 of them. I never had any problems with over-pressure and the lines in my camper exploding or anything. I thought it worked pretty well.
Then one time, we stayed at a KOA. The manager warned us to be sure to use a water regulator on our camper as the water pressure at the spigots was 110 pounds and that would blow out our lines if we didn't use a regulator.
It was at that point, I had the "Ah Ha!" moment and realized I didn't know how trustworthy that device REALLY was.
EVER since (and it's been a few years now), I don't attach a hose to my camper. I fill the fresh water tank and pump from there. When it gets low, I fill again. I may leave my water hose laying on the ground, but it's not attached.
I know some folks will probably chime in with some pretty sophisticated water pressure regulator suggestions, with gauges, and valves, and settings, and everything else. But simplicity is the best. Isn't it? Your on-board pump will not over pressurize. I prefer to be 100% safe and never have to worry about it.
Several years ago, we had a garden hose burst on us. I had the regulator between the hose and the camper. If it would have been between the spigot and the hose, it might have saved the hose. Something to think about? Where do you place the regulator?
