Low Water Pressure

[brihvac]

I have a 2002 Cedar Creek 36' 5ver that I have kept in a campground since I bought it new. I have HORRIBLE water pressure. I have checked and replaced the incoming screen, tried with and without pressure regulator, pushed the check valve in and out to make sure it was free, and replaced incoming hose. When I first got the trailer it had a incoming filter that I removed because I had no water pressure. I have been running it with no filter since (2003). When I take a shower the water barely comes out. If you turn on a sink it stops coming out completely. I can barely shower its really bad. The water pressure coming in the trailer seems good but inside its horrible. Please help.

[C_Schomer]

I would start by teeing in a pressure gauge in the park hose and see if pressure is keeping up when you open faucets. If it's not, there is a restriction in the park plumbing. If the pressure is staying up, I would try filling the fresh water tank and see if the flow is better when using the RV pump. If it's good, no more problem. If not, it could be bad pump pressure. I had low flow when using the pump and I had to turn the pump pressure up. If flow is still bad, disconnect the pump discharge connector and connect the gauge to the discharge tube with a 1/2" pipe fitting. Then you can use the park water again and see if the pressure is staying up in the RV system while faucets are open. All this will greatly narrow down where the restriction is. Craig

On second thought, I'd use two gauges. Keep one teed in where the park water enters the RV and one on the pump discharge tubing. I think it would be good to see the pressure at both those points while faucets are open. If pressure is good where the water enters but low at the pump discharge gauge, the problem is most likely the check valve at the park connection cuz nothing else should be between those two points. If pressure stays up at the pump discharge gauge and flow is still bad, there's a restriction between that point and the faucets. Good luck.

[whiteeye42]

if it was me i would be shutting the water off and draining everything then bypass the water heater and fill the rest of the system with vinegar and let sit for about 2 hours and then drain and flush do you by chance have a pressure regulator on the water supply line from the campground to the trailer if so it might have failed most city water pressure should be no lower than 35 psi. and if this dose not work then start checking for a kinked line

[brihvac]

Checked a few things out. It looks like there are no filters/ strainers other than the check valve right at the inlet. Now there still is the large incoming filter housing that is still in the picture that I run without a filter in it. I can pretty much see everything. What should my incoming pressure be? I am going back down this weekend and will remove the pressure regulator. I had done this before and it did not seem to make a difference.
Flushing seems like a good idea. How about bleach? How do you go about flushing or should I just replace the fixtures? The shower is the only one that really bothers me.

[aruba5er]

First thing you have to do is go buy a pressure gauge. They have those that have a gauge and regulator together, so that would be my first choice. Without knowing the pressure you and all the others that are trying to help you are playing a guessing game. After you get one you will know the pressure at the faucet you have your hose into. Now you could use a water thief ( an adapter) to hook up onto a faucet and then use your new guage to measure the pressure there. guessing just don"t do it

[Super_Dave]

Another thing to possibly check for pressure is to open one of the low water drain lines and turn on the pump. It should piss like a race horse. If the flow isn't full bore while doing that, it would seem like the issue starts at the pump.

[KPSmithSr]

brihvac,
I've got to go with Old Biscuit and Texas on this. We had a very similar problem and a good flushing with a vinegar/water mixture cleared it up. I took the shower head off and found little rocks of calcium. The toilet and kitchen sink had basically no flow. You may also want to flush the hot water tank. Now we flush our system twice a year with vinegar.

[Old-Biscuit]

laknox wrote:

sleekcrafter wrote:

Old-Biscuit wrote:

sleekcrafter wrote:
When my holding tanks get full, My water pressure does the same thing. Maybe something else to look into, with the holding tank sensors.

:H

2 completely, separate systems that have nothing to do with each others function.

OP.......
Rv has been set up in CG without an inlet filter.......so all faucets/showers are probably plugged up with minerals.

Other than plugged aerators at faucets and plugged shower head, the check valves (one in the city water connection and one in water heater hot outlet) are the only things in the plumbing system that would resistance flow)

When was the last time you drained/flushed water heater?

No sure how My Jayco system is set-up, but if my holding tanks are nearing full, water from the faucet reduces quickly, to a trickle then stops completely. If I drain the tanks, water pressure returns to normal.

IMO, the weight in your tanks is pinching a water line, somewhere. Eventually, the line will fatigue an burst, then you'll have a =real= problem. I'd sure look at that sooner rather than later.

Lyle

Something isn't right that's for sure as 'level' in holding tanks have nothing to do with the flow of water thru plumbing lines.

Does this occur with ALL faucets, the shower and the toilet OR just one faucet?
Same thing occur when on city water and/or pump OR just one one source?

You need to find/fix this issue cause it isn't normal or by design.
It is something wrong!

[Second_Chance]

I had a similar problem when my unit was new (only on the pump side as the city water doesn't go through the pump circuit). When I pulled off a panel to check out the pump and strainer, I discovered a chronically kinked hose that was a result of how it was routed around part of the dinette slide. I spliced in a 90-degree elbow so the line didn't kink making the corner and all is well. You might start out by just tracing the water lines from intake to a fixture and see what you find.

Rob

[laknox]

sleekcrafter wrote:

Old-Biscuit wrote:

sleekcrafter wrote:
When my holding tanks get full, My water pressure does the same thing. Maybe something else to look into, with the holding tank sensors.

:H

2 completely, separate systems that have nothing to do with each others function.

OP.......
Rv has been set up in CG without an inlet filter.......so all faucets/showers are probably plugged up with minerals.

Other than plugged aerators at faucets and plugged shower head, the check valves (one in the city water connection and one in water heater hot outlet) are the only things in the plumbing system that would resistance flow)

When was the last time you drained/flushed water heater?

No sure how My Jayco system is set-up, but if my holding tanks are nearing full, water from the faucet reduces quickly, to a trickle then stops completely. If I drain the tanks, water pressure returns to normal.

IMO, the weight in your tanks is pinching a water line, somewhere. Eventually, the line will fatigue an burst, then you'll have a =real= problem. I'd sure look at that sooner rather than later.

Lyle

[Jim_Sharon]

It sounds to me like you have a water FLOW problem, rather than a water pressure problem.
In other words, the water is not getting into your water system quick enough to build up any pressure. You are using it quicker than it comes in.
The inexpensive water regulators many people use restrict water flow a lot. So do water filters. I would look to see if you have reasonable water flow without filter or regulator before digging into the trailer.
If you do have good flow, it could be tough finding the restriction in the trailer system. Or it could be as simple as a clogged water restrictor on the shower hose.

[sleekcrafter]

Old-Biscuit wrote:

sleekcrafter wrote:
When my holding tanks get full, My water pressure does the same thing. Maybe something else to look into, with the holding tank sensors.

:H

2 completely, separate systems that have nothing to do with each others function.

OP.......
Rv has been set up in CG without an inlet filter.......so all faucets/showers are probably plugged up with minerals.

Other than plugged aerators at faucets and plugged shower head, the check valves (one in the city water connection and one in water heater hot outlet) are the only things in the plumbing system that would resistance flow)

When was the last time you drained/flushed water heater?

No sure how My Jayco system is set-up, but if my holding tanks are nearing full, water from the faucet reduces quickly, to a trickle then stops completely. If I drain the tanks, water pressure returns to normal.

[Vet_Man]

How much water press at the pole?

[Texas_Two_Stepp]

Calcium build up in valve bodies of fixtures.

[Old-Biscuit]

sleekcrafter wrote:
When my holding tanks get full, My water pressure does the same thing. Maybe something else to look into, with the holding tank sensors.

:H

2 completely, separate systems that have nothing to do with each others function.

OP.......
Rv has been set up in CG without an inlet filter.......so all faucets/showers are probably plugged up with minerals.

Other than plugged aerators at faucets and plugged shower head, the check valves (one in the city water connection and one in water heater hot outlet) are the only things in the plumbing system that would resistance flow)

When was the last time you drained/flushed water heater?