Water Pressure

Do yourself a favor and google 'rv water filter store'. This guy is the bible for rv filters and systems, pressure regulators and hoses. You will get educated on what is causing the pressure drop. Then buy an adjustable pressure regulator with a gage. I recommend a Watts 263A. I also run his filters and I bought a couple short hoses from him. Quality stuff.

Tim

Pressure regulators come in several types. I will review them here. Also age is a factor, Will comment later in post

Small (about 3/4 Inch) Cylinder male connection on one end female on other WITHOUT wings or bright plastic grip... PURE JUNK, can not do 1GPM well

Same with wings on body or Bright plastic grip Still JUNK Does one GPM, you need at least 2.5 to be good.

Note, Above may be brass or plastic

Sur-Flo.. When new I give this one a 9.. (Just shy of 2 GPM flow rate) But See below.

Valterra Adjustable: I have not personally tried, Others say nice things

Watts, 1/2 inch or larger, Also Zurin 1/2 inch or larger

These are designed to be installed in a house.. They have a bell shaped upper housing with a bolt where the "hanger" on a bell would be (or the handle on a hand bell) this is the pressure adjustment.. Mine are 3/4 inch

I give both of them a resounding 10 when new

But From Sur-Flo on as they age.. Well you know the joke about Bo Derrek getting older (10-9-8-7-.....1) Applies to these.

BUT.. They can be rebuilt. I've still got to get a rebuild kit but they can be rebuilt. Easily and cheaply

Exception: I have not actually held one of the Valterra units in my hand so I do not know if it can be rebulilt or not.. Guessing it can but not sure.

All of them though as they age become more "Restrictive" of flow.

What kind of water regular are you using? One of those cheap in-line ones don't have very good volume. The pressure drop on 25' of hose is so small you have to scientific instruments to measure.

Couple thoughts come to mind.

First, as stated above, the hose is holding pressure, (as stated above)
Second, nothing wrong with your pressure regulator.
Third, is your filter clogged up?

Fourth... I quit using water connected to the campground spigot. I attach my hose long enough to fill my fresh water tank on my camper, then run water from the fresh water tank. I run water into the tank via a filter also.

Although I have never had problems with water pressure at any campground (because I have a pressure regulator also)... I quite doing this because of 2 events that happened.

First: When we got our new Outback TT, we stopped at a KOA campground. When we check in, the manager told us to use the regulator because the water pressure through out the entire campground was above 70 PSI, and without a regulator, we'd blow our trailer pipes out! (Oh yuck).

This got me to thinking???? Just how good is that little regulator. So right then I decided to go ahead and fill the fresh tank and not worry about pressure at all. After all, the on board pump is made to be at the right pressure! Right? So I filled the fresh water tank, unhooked the hose, and ran off the tank. I've been doing it that way ever since.

This also prevents the problem of LOW pressure, which we did experiences a lot in our past.

Second. This event happened a few years ago, but it taught me a lesson, to always keep fresh water in the tank. We were at a campground that had their own water supply, on their own well system. We were connected via the hose, happy camping, when sometime in the middle of the night, their pump house had major electrical problems and .... you guessed it ... no water to the entire campground. We were scheduled to be there several days. I will say that next morning, the entire campground (campers) were all in a panic. I did have about 1/3 fresh water tank full, although the water was not recently "fresh" it was enough we could take showers and such in the camper, which we did.

Finally, they got the power problem worked out and the water going again. It took the entire day to get it fixed. I then drained the old water out of the fresh tank, and then refilled with fresh water.

And you know what? Their pump house blew again that second night! Only this time, it took 3 days to get the water going! We were quite comfortable... we had plenty of water in the fresh tank, and we had a marvelous time! But... there were many people in the campground who packed up and left. Before the 3 days was over, there were only a very few of us left.

So between these 2 events, I have always A) filled my fresh water tank when first arriving at a new campsite. B) would hook up the garden hose. But after the KOA incident, I just now fill up the tank and turn the campground spigot off!

May I suggest you do the same and then you don't have to worry about pressure at all. (although you do have to hear the water pump run in your camper, but really, that's not so bad ... really!)

If the regulator is on the spigot end, it is possible that it is the regulator. The larger diameter hose acts as an accumulator tank. Once the pressure drops the small hole in the regulator restricts the flow.
I would opt for a better regulator like the Valterra A01-1117VP or a Watts
Valterra

I don't think its the pressure regulator. I think its the hose. When setting still, the (static) pressure stretches out the hose. When you start water flowing, the hose slowly shrinks back to its resting state.

Getting a stiffer hose will solve the problem.

I have my regulator where water enter rv so no lose from hose.one screen in inlet to regulator.When I used a cheap regulator I left pump on and it would keep pressure up if it got to low.Worked for me '
dave