When at a campground, what is the suggested psi setting for an adjustable water pressure regulator? —Tony, 2003 Holiday Rambler Vacationer
Thanks for the question. It is a very popular one at my seminars.
The best pressure depends on the plumbing system or, more specifically, the lines and fittings that you have and what they can stand. My folks bought a used unit a long time ago and went to visit my brother in AR. They hooked up to the outside faucet and later that day they came back to the rig and the entire floor was soaked!
Their outside pressure was probably 60 psi and nothing inside the rig actually burst; however, the fittings could not hold the pressure and it just leaked out. Older units used the 3/8” gray lines with either copper elbows or plastic and metal crimps. These cannot withstand much more than 40 psi.
Several companies have gone to PEX or other plastic 1/2” lines; however, some still use copper elbows and metal crimps. Others have gone to plastic compression fittings such as PEX, Flair-It™, SeaLand®, SharkBite® and others which can withstand up to 60 psi or more.
Get a pressure regulator to determine water pressure at the campground
Most residential pressures will be in the 40 psi range. I would suggest getting a water pressure regulator and a filter that will ensure it stays at 40 psi as most campgrounds do not have municipal water systems but rather run on well water and a pump. The closer to the pump, the higher the pressure.
This will provide good pressure as well as flow which is important for the amount of water. You can have 60 psi but if you are not getting 3.0 gallons per minute, it will not feel like the right amount of pressure. A good idea is to get a pressure regulator that is adjustable and dial it up higher and test to see if your system will hold it. However, if you have the copper elbows and metal clamps, I would stay at 40 psi.
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Avoid a geyser in your RV with a pressure regulator
By Russ and Tiña De Maris
As many as 2,000 people are on hand each time Yellowstone’s Old Faithful geyser pops off. You can bet a lot of them arrived in their RVs. Geysers are fascinating—a lot of water under pressure, looking for an out. But one place a geyser isn’t welcome is inside your RV. But water under pressure is always seeking an “out.” If there’s too much pressure, your RV plumbing could be that out. Using a water pressure regulator can hold down the stress, and keep your RV plumbing dry. Learn all about water pressure regulators here.
Dave Solberg is a leading expert in the RV industry and the author of the “RV Handbook.”
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