Low city water pressure

[s1000pre]

Water pressure from the pump is great.
My water pressure when hooked up to the city is a heavy trickle.
I replaced my Sureflo city water valve and the water pressure remained the same. My in-line pressure regulator is reading 60psi, any ideas what else it could be?

[Daquenzer]

I have heard of some people running their water pump to increase pressure. I've never had to do it. But might want to try it.

Also there is a screen on the city water intake. I've had that plugged before. Had to take a blower and blow it out. Big difference. I would start there.

[s1000pre]

Originally Posted by Daquenzer

I have heard of some people running their water pump to increase pressure. I've never had to do it. But might want to try it.

Also there is a screen on the city water intake. I've had that plugged before. Had to take a blower and blow it out. Big difference. I would start there.

Where is the screen located?

[s1000pre]

If you are referring to the screen in the city water inlet. I replaced my city water inlet yesterday with a brand new one. Both the new and old produce the same low water pressure. Though the pump’s water pressure is fine. The city water isn’t the issue, this has been reoccurring for months at many different parks, some with really high water pressure. I’m looking to see if there is any other place in the plumbing system that could cause a restriction. This restriction must take place up line from the pump being that produces good water pressure.

[link2dks]

I know this sounds obvious but…..

Have you checked the city water flow without the external pressure regulator?

Dave S

[solomon.m]

I recently changed my city water hose from the generic white hose (now the spare or for extra length) to one of the blue high tech hoses and notice lower flow in the shower. I suspect the smaller diameter may be contributing. I've also noticed it taking longer to fill my fresh tank with the same blue hose so maybe this is an expected result. For now I've been turning on the pump while using the shower and running off the city hookup for everything else where I don't mind the slower flow. You might experiment with hoses to see if you observe a difference

[tjdonahoe]

Water filter?

[JCWDCW]

Have similar problem with 2012 international
Have always suspected the pressure control valve
Wonder if hooking up the the pressure reducing valve to a hose before installing a new one might shed some light on how good the flow is?
Running the pump just takes water from the tank. Doesn’t boost the city water pressure

[kscherzi]

The pipe from the city water and pipe from the pump tee together to service the trailer. In my 27FB they tee together with a couple feet. A check valve in the pump prevents city water from flowing backwards into the tank and a check valve at the city inlet prevents water squirting outside when on the pump.

To eliminate some obstruction in internal piping between the city inlet and point where it tee's with the pump outlet, you could remove the city inlet then run the pump. It ought to force water backwards to the city inlet and rapidly squirt water from the tank to outside.

[John Ware]

The OP's ck valve could be bad causing the city water to back up into the fresh water tank and losing pressure that way but he didn't mention that his tank was mysteriously filling. Mine did that once and I noticed the city water pressure was low.

[s1000pre]

Originally Posted by kscherzi

The pipe from the city water and pipe from the pump tee together to service the trailer. In my 27FB they tee together with a couple feet. A check valve in the pump prevents city water from flowing backwards into the tank and a check valve at the city inlet prevents water squirting outside when on the pump.

To eliminate some obstruction in internal piping between the city inlet and point where it tee's with the pump outlet, you could remove the city inlet then run the pump. It ought to force water backwards to the city inlet and rapidly squirt water from the tank to outside.

Good idea! I’m going to try this.

[CBWELL]

Confirm that you are getting a good flow and pressure from your supply hose before connecting to the trailer. You can have good pressure, but low volume. A partially restricted hose will still have good pressure, but lower volume. Also check the backflow valve in the city water line for debris or corosion blocking it. I have also seen a hose washer partialy block the hose at the supply end or at the trailer inlet.

[s1000pre]

I’m getting ridiculous pressure from the hose. The water shoots out of the hose almost 30 ft. Park warns not to use water without a regulator. This issue is inside, not the supply line.

[Scott S]

To me this sounds like a bad pressure regulator...they do go bad from time to time. Try removing yours to test if this is the case.

[s1000pre]

It isn’t the regulators. I have replaced both the Sureflo and my in-line.

[Wazbro]

Originally Posted by s1000pre

It isn’t the regulators. I have replaced both the Sureflo and my in-line.

Just because they were replaced doesn't mean they are good. I had a bad master cylinder on a car, replaced it and had same exact symptoms, replaced it again after getting advice from others that it still had to be the problem and then it worked.

Try removing the Sureflo hook it to the end of hose with other regulator in place and see if you have good water volume (not pressure). That test will prove whether or not the regulators are good.

[s1000pre]

-I have attempted using 3 different shurflo regulators (photo below)
-Each regulator has had the same result, roughly 50-60% of water volume through all faucets when compared to the water pump.
-this morning, I notice that the initial burst when opening a faucet on city water is comparable to the water pump, then quickly drops.
-the Shurflo is rated at 65psi.
-my outside regulator is displaying 54psi. I replaced this one as well.

[Boxite]

Originally Posted by s1000pre

It isn’t the regulators. I have replaced both the Sureflo and my in-line.

REmove the “in-line”… Airstreams already have a restrictor/regulator installed at the factory. We camped at Nashville and had extremely low city watter …and when we complained both the park and the neighbor reported similar results…despite the fact city pressure was 60 psi.

We quit using an in-hose/inline restrictor and never-more a problem. You only need the OEM AS which is inside the trailer.

[moosetags]

We would often run into low water pressure at various campgrounds. We have now gone to using the pump all the time when camped in Lucy. This rotates our fresh water supply, and it is not that difficult to top off the freshwater tank as necessary. Now Lucy's water pressure is always great.

Brian

[aftermath]

Don't confuse pressure with flow. You can have good pressure and good flow throughout your trailer. Let one faucet screen clog up and the flow gets pretty bad. You still have good pressure there.


I would get rid of the redundant pressure regulator. I would also temporarily remove the exterior water filter as these can clog up and slow flows. Try a different hose. If none of that works my guess will be the "new" sureflow inlet. Get a new one but before you install it, hook it up and check what kind of flow you are getting. You can compare it to the one you just put in.