Water pressure regulator...

TruckinRVer wrote:
Should my water pressure regulator be in line before or after my water filter?

Mine doubles as turn off knob on top of stand pipe

Incorporated into side of the teardrop so after the water filters. I know the filter housings will stand 120 PSI and the hoses, oh well if they fail.

At the Faucet, then My filter goes at the inlet to the TT

Old-Biscuit wrote:

After a $6000 repair due to $0.50 fitting breaking and RV getting flooded I no longer stay connected to 'city water'-----use the pump exclusively

Isn't this what insurance is for?

I put my regulator downline (at the trailer) for several reasons:
1. Filter prevents clogging of the regulator
2. Pressure drop through the hose is avoided
3. If the regulator fails, the hose will not save you.

Yeti plus wrote:
I put my regulator right at the trailer or camper.
When the hose sits in the sun the pressure increases. The hotter the hose, the higher the pressure, so the pressure in the RV goes up if the regulator is at the spigot. If the pressure goes up in the hose with the regulator right at the RV and the hose breaks no big deal , just buy another hose, or a mending kit. There has been no high pressure in the RV.
Brian

The pressure increase in the hose from sitting in the sun is negligible, only a lb or two at most; rather, the hose gets soft and expands, which actually relieves that pressure increase. And if the hose breaks, there has been no high pressure in the RV, regardless of which end the regulator was installed on. In fact, the hose is more likely to break if it is subjected to the un-regulated campground pressure.

kellertx5er wrote:
I put my regulator downline (at the trailer) for several reasons:
1. Filter prevents clogging of the regulator
2. Pressure drop through the hose is avoided
3. If the regulator fails, the hose will not save you.

I understand #1, but #2 and #3 make no sense.
#2 There is very little pressure drop through a 25' 3/4" hose; about 0.5psi, certainly not enough to have any real effect.
#3 If the regulator fails, the hose will not save you regardless of which end has the regulator on it.


Personally, I use the regulator at the faucet; that way EVERYTHING is protected; I see absolutely no downside to that. YMMV.

One additional thought.. SOME filters are very restrictive to water flow. IF You have one of those you need TWO water Pressure Regulators

One pre-filter set to around 60-70 PSI one post filter 45-50

Do not use those little inline cylinders. Use a Watts or ZUrin or at the very least the Valterra adjustable. THe watts and zurin have a bell shaped upper housing with a bolt that sticks up out of the bell.. They work well when new, and can be rebuilt when old.

I use a Watts regulator and connect it at the trailer. I then connect a 150 psi water water hose to go from the spigot to the regulator. Using a high pressure hose stops the "pregnant" hose syndrome that comes when using a regular hose.

I have a long hose first, then the water filter, then a Watts regulator with a tee and Gage on each side of the regulator, then a short hose connecting to either the city water inlet or the cold water low point drain. I attached j hooks to the black propane pipe using u bolts near the city water inlet and hang the filter and regulator assembly from them.

I've been doing this more lately. An example is this. We'd boondock at the football all weekend. Then go to a campground with water hookup. However, I'd just continue using out of the fresh water tanks in order to help keep that water fresh. When I'd run out of water from the fresh tanks, I'd put more city water in them. Then I'd be back at the boondocking area at the university for another football weekend.

Hadn't given that much thought about pressure from the city water possibly doing damage to the piping.

DutchmenSport wrote:

Old-Biscuit wrote:
....
After a $6000 repair due to $0.50 fitting breaking and RV getting flooded I no longer stay connected to 'city water'-----use the pump exclusively

This is exactly why I do the same thing. I never hook up the hose to the fresh water inlet. I always fill the fresh water tank and pump from there. And .... I've never had problems doing it this way either.

But, for the OP, if you are going to use a regulator, put it on the spigot. Hopefully, if it fails, your garden hose will blow before the pipes in your camper does!