No water pressure on city water

[BillD007]

2006 Lexington 235. Kitchen sink gets no pressure for cold water. Was using tank water then switched to city water that has plenty of pressure. How water works. Changed to new under sink filter: no joy. Removed the filter (not the housing, just the cartridge filter): no joy. Is there another filter besides the under sink filter?

Toilet flushes fine. sink in bathroom is good.

Failing that, anyone know a good mobile rv repair service in the Houston area? I'm close to downtown.

[K7JV]

When you say "no pressure", I'm assuming that when you turn on the cold tap, zero water comes out.

Or is it just below expectations?

I'm also assuming from what you said that when you turn on the hot tap in the kitchen sink, water flow is normal?

I'm also assuming that you are getting normal cold water flow in the kitchen sink when on city water?

When you connected to the city water, all you did was connect the water hose to the outside connection on your coach. Do you have a valve in your rig to select between your fresh tank and the city source? If so, you must have done that correctly for hot water to be available and for cold to be available everywhere else.

Did you turn off your water pump?

Did you touch your kitchen under-counter filter before you lost cold water at the kitchen sink? Those filters sometimes have a valve adjacent to them to allow replacing them without turning off all water. Also, they may be designed so that as soon as you begin the process of removing the filter, the unit stops the water flow. Any chance your problem is at that filter?

Did you touch or change anything else?

Water systems in RV's are not usually too trouble prone, but since they have to manage water supply from more than one source, they do have valves and configurations that homes do not, so some "traps" can exist that can cause mis-operation. Often when something quits working as expected after something is changed, the problem can be found by re-tracing the steps that were taken in the change. Or reverse the change and see if the problem goes away. About the only thing that could cause your problem would be a valve in the wrong position, whether it be a water systems inlet valve, your "Fresh Water Fill" tank valve, a check valve, a filter maintenance valve, or even the outside shower tap valves (not likely).

Hopefully you won't need to incorporate an RV tech to solve your problem.

[BillD007]

Well, as the title says I've got no water pressure in the cold water whether I'm hooked to city water or using the pump. No water pressure means nothing is coming out. Connected to city water means I have a hose coming from my house to the threaded connection on the rv. This rv, a 235 Forest River Lexington has no switch or valve to change from city to tank water.

[litzdog911]

If it's just at the kitchen sink then it's most likely a clog at the cold water inlet to the faucet. But I'm puzzled .... you say "Was using tank water then switched to city water that has plenty of pressure.", but then you say "I've got no water pressure in the cold water whether I'm hooked to city water or using the pump.". Which is it? If there's no pressure there on both city water and your pump, then it's an issue at the faucet.

[BillD007]

Thanks for the reply. Sorry for any confusion.

I was saying that the city water pressure is OK. This seems to be an issue with the faucet. Are these faucets special to the rv or can I just buy a simple one at Home Depot or Lowes?

[K7JV]

I agree with Litzdog. Other than the possibility that there is a problem with the water filter under the sink, which you said you changed, the faucet assembly would be about all that is left. In our previous coach, I was able to get valve replacement components for the kitchen faucet assembly at Ace Hardware. The faucet came apart pretty much like residential ones do. But there's no guarantee that the hardware in your coach is the same in design as what was in ours.

I think the short answer is that RV water fixtures do seem to be different than residential hardware. For one thing, they are typically lighter and frankly in my opinion, more flimsy. The water inlet fittings are likely different and the spacing between the two inlet line/valve holes and the center tap location may be different. In RV's things are often a bit smaller. I don't know if that would be the case or not, but it could be. But you certainly could take your fixture off and head to Home Depot and see what they can do for you.

You can also look on any of a number of RV supply websites. Camping World. Overtons. eTrailer. RVPartsUSA. PPL. I have done business with all of those, numerous times, with the exception of RVPartsUSA.

If you wanted to do some "testing", you could loosen the inlet fitting on the water filter under you sink and see if you get water. (I'd do it with the pump supplying the water, not your house, so you can turn it off quickly if it gushers). If not, the problem is ahead of that point. If you do get water, then retighten it and then loosen the outlet fitting and see if you get water. If not, the problem is with the filter. If you do, the problem pretty much has to be the sink fixture.

Good luck to you. This should end up being an easy and inexpensive fix. Prayers!

[BillD007]

I think you are right. The only filter that I can find is the one under the sink and I replaced it. I even removed the filter cartridge and no joy. I can't think of anything that would cause the cold water to stop would be a serious clog in the faucet.

From what I've read, the main difference between rv faucets and those in houses is the fitting (assuming the holes line up). Looks like it's time to do the tight space twist and remove it to be cleaned or replaced.

Hey, I'm in Houston and never lost power. I count myself lucky.

Be Well folks. I'll let you know.

[K7JV]

Hey, if you're in Houston, PPL RV is based in Houston. We've bought from them more than once, and they have EVERYTHING!!

I understand about the "tight space twist". I'm past the half-way point between 70 and 80, and the limits of the tight space twist get tighter and tighter with every passing day!!!

When you do crawl under there, you might loosen the cold fitting and have your a friend or your significant other turn the pump on for a few seconds and verify that you do have water at that point. But I can't imagine that anything would have gone wrong at the filter. Wouldn't hurt to check, though, just to be sure. Just take a few extra seconds.

Good luck!!

[BillD007]

OK folks. I disconnected the cold water supply line from the faucet and tested it. Got good results. I'll be going to PPL to get a replacement faucet as I don't think the local Home Depot will have them

Thanks for the comments.

[K7JV]

Fantastic, Bill. Sounds like a major win! I'd love to go to PPL and see what they have for a facility. FYI, eTrailer.com is a good resource, too. I've worked with them on things like vent fans, pumps, etc.

Thank you for letting us know. Cheers and blessings and Happy RV'ing!