A little history here, I had a fresh water line that developed a leak due to contact with a sharp point screw. Had to replace some of the piping with PEX ; installed a new sanitary compartment faucet, and added a garden hose bib. The original pressure reducer that is connected to the city water inlet looked like it had been leaking, so I replaced it with a Camco pressure reducer, which is sold at almost every RV supply. Amazon.com: Camco RV Brass Inline Water Pressure Regulator- Helps Protect RV... (https://www.amazon.com/Camco-Pressure-Regulator-High-Pressure-40055/dp/B003BZD08U/ref=sr_1_3?keywords=water+pressure+reducer&qid=1559334939&s=gateway&sr=8-3) On the last trip of about a month I would occasionally find a bit of water in the fresh water tank area on one or both sides of the coach. As it was raining a lot on the trip, it was difficult to tell whether it was a leak or rain water getting in through the water heater vent. We didn't drive in the rain except for one time, it rained mostly while we were parked. Anyway I have finally discovered that it is the Camco pressure reducer that is leaking, and it is leaking from the swivel joint, so I can not tighten anything to stop that. It is not much of a leak, a drop every 2 or 3 minutes, but after awhile there is a puddle of water, which may run under the gray and black tanks to the other side, aft to the water heater/pump area and then maybe back under the fresh water tank to the other side according to the tilt of the coach. I have tried 2 Camco reducers now and they both leak. The leak is even more if the pump is turned off and the pressure drops, that is until the pressure is zero, then it stops. The Camco is shorter than the original, but as I was replacing the pipes, I cut them to fit the shorter reducer. Now that I have a fill on the tank, I have not used the city water connection. I fill the tank and use the pump. If the pump runs when it should not, I know something is wrong. But for a minor leak like this it doesn't come on enough to indicate a problem.
The city water connection has a check valve that prevents water from escaping when it is not being used and the pump is on. The end behind the panel has 3/4" male garden hose threads. Almost all pressure reducers have garden hose threads, so it is no problem to install one, you only need a 3/4" garden hose to 1/2" pipe adapter to connect to the coach plumbing. A minor leak is no problem on an outside faucet, but where I have it, it is a problem.
I have looked on line, mainly Amazon, for a reducer with out a swivel, but most seem to have a swivel, unless it is something that is much larger and will not fit without redoing some of the piping. I can fix the problem with a garden hose adapter to 1/2" pipe 2 1/2" long, but then I do not have a pressure reducer, unless I or a future owner always has a reducer at the faucet. Both of us may forget. Thinking of getting an O-ring to fit in the swivel joint gap and then wrapping the gap area with rescue tape once installed. Not sure if that will stop the leak, can only try and see.
Anyone else had this problem and come up with a solution?
Probably not helpful but my pressure limiting valve is on the end of the hose that attaches to the shore water spigot.
I install my pressure reducer at the water tap as well. Have had this Camco now for about 5 years and no issues at the swivel.
Yup, a good idea to protect both hose and coach, so pressure reducer at shore water connection is a good idea.
Yes, I have been doing that with the hose, even though I just use it to direct fill the tank. I was hoping someone might know of a pressure reducer with out the swivel. Thanks for the replies though.
I use this pressure reducer at the campground spigot: https://www.rvwaterfilterstore.com/Fixed.htm
High end, very good quality.
Jerry, this one here might work for you!
M11-0660R Water Pressure Regulator Valve. Brass Lead-Free Adjustable Water Pressure Reducer with Gauge for RV Camper, and Inlet Screened Filter
Amazon.com: Renator M11-0660R Water Pressure Regulator Valve. Brass Lead-Free... (https://www.amazon.com/dp/B01N7JZTYX/ref=cm_sw_em_r_mt_dp_U_bOB8CbF36S9S7)
Ditto on the M 11
Thanks to everyone who replied. Decided to give the rescue tape a try and see if that would work. I filed the rough part of the casting to make it smooth, could not find an o-ring to fit in the gap, wrapped dental floss to pack it tight and flush with the top of the gap where it was leaking. After the pressure reducer was in place and all the connections tight, I wrapped a 12" piece of 1/2" wide rescue tape around it stretching it as tight as I could. About 5 or 6 turns. It's been a couple of days and have driven the coach and it's not leaking. The one used by juicesqueezer and Jeff looks better made, but I could not tell if the length was the same as the Camco. If different I would have to redo piping. That's the reason I tried the tape fix first.