Proper Spot for Water Pressure Regulator
Where is the best place to put the water pressure regulator? At the rv park spigot or at the rv fresh water inlet.
Forum Discussion
As for thermal expansion and the regulator acting as a check valve, all RVs I've seen for the last 20 years have a check valve right at the hose connection so you already have a 'closed system'. If not for that check valve, if you weren't connected to city water, you'd have a stream of water spraying out of the hose connection as soon as you turned on your pump. My experience is that all the $10 regulators, although they do the job, also are very restrictive and make for a really weak shower experience. The good, larger units with the valve seem to pass a much greater volume of water.
