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Author Topic: City water input - check valve?  (Read 961 times)

Dougie Brown

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City water input - check valve?
« on: April 11, 2017, 11:31:50 AM »
Is there a check valve between the incoming hose connector and the PEX pipes?  I ask because when incoming water pressure is good, the output in the coach is inconsistent but at best, mediocre. This has happened at three different campgrounds in the last week; the tank flush pressure is unaffected.  The access to what feels like a brass check valve is extremely limited plus it's lousy wet weather at the moment, so before I start the contortions, I thought I'd ask. Thanks.

PS: it's not a filter issue because I'm running without one currently.

Dougie.
2000 Winnebago Adventurer 37G (F53 chassis, Ford 6.8 V10 gas)
1999 Ford Escort SE (2.0L 4cyl gas)
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Alfa38User

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Re: City water input - check valve?
« Reply #1 on: April 11, 2017, 11:41:21 AM »
YES!! It is built into the hose connection for city water in most cases. May be equipped with a screen as well.
« Last Edit: April 11, 2017, 11:43:32 AM by Alfa38User »
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Dougie Brown

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Re: City water input - check valve?
« Reply #2 on: April 11, 2017, 11:51:54 AM »
Yay. Thanks for that. It does have a screen which I replace periodically.  That sucker's being converted to an ex-check valve by means of a drill then as I have a manual valve permanently installed before the connector.

Dougie.
2000 Winnebago Adventurer 37G (F53 chassis, Ford 6.8 V10 gas)
1999 Ford Escort SE (2.0L 4cyl gas)
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Rene T

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Re: City water input - check valve?
« Reply #3 on: April 11, 2017, 02:53:56 PM »
Yay. Thanks for that. It does have a screen which I replace periodically.  That sucker's being converted to an ex-check valve by means of a drill then as I have a manual valve permanently installed before the connector.

Dougie.

Dougie, if you do that with a drill, you'll find out real quick why there's a check valve there. It's to prevent water from coming out that line when you're using the onboard water pump. 
Rene & Lucille & co-pilot Buddy
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Dougie Brown

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Re: City water input - check valve?
« Reply #4 on: April 11, 2017, 03:05:47 PM »
As I mentioned, I have a manual valve on a connector before the main one which is always closed when city water is disconnected. I won't be sticking a drill into it anyways without disconnecting the PEX as I don't fancy picking metal shavings out my coffee.
« Last Edit: April 11, 2017, 03:07:57 PM by Dougie Brown »
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1999 Ford Escort SE (2.0L 4cyl gas)
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Dougie Brown

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Re: City water input - check valve?
« Reply #5 on: April 12, 2017, 03:00:29 PM »
Problem sorted. Decent showers at last!! Thanks. :)

Dougie.
2000 Winnebago Adventurer 37G (F53 chassis, Ford 6.8 V10 gas)
1999 Ford Escort SE (2.0L 4cyl gas)
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BIG JOE

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Re: City water input - check valve?
« Reply #6 on: April 12, 2017, 05:36:10 PM »
Yay. Thanks for that. It does have a screen which I replace periodically.  That sucker's being converted to an ex-check valve by means of a drill then as I have a manual valve permanently installed before the connector.

Dougie.

X2.

 I was able to gut the check valve, spring and retainer.. from it's back end by just pushing them all out, from the front.

 I also use a (90*) manual shut off valve.. external to the connection bib.

Can now REALY RINCE OFF the shower soap, REALY RINCE my razor.. and fill the coffee pot in half the time. DW likes being able to fill the sinks faster too.

(I've removed the re-stricter discs from all the faucets, and shower head also)

Life Is Good(er)
« Last Edit: April 12, 2017, 05:50:38 PM by BIG JOE »
Joe

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Rene T

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Re: City water input - check valve?
« Reply #7 on: April 12, 2017, 05:44:50 PM »
X2. I was able to gut the check valve from the back side, and I also use a (90*) manual shut off valve.. external to the connection bib.

Can now REALY RINCE OFF in the shower, REALY RINCE my razor.. and fill the coffee pot in half the time.

Joe, it made that much difference?  If it did, I just may do it too.
Rene & Lucille & co-pilot Buddy
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Dougie Brown

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Re: City water input - check valve?
« Reply #8 on: April 12, 2017, 06:01:15 PM »
I tried removing the pressure regulator while I was there just to see what happened. WOW. But I put it back as I fitted it for a reason. :)

Dougie.
2000 Winnebago Adventurer 37G (F53 chassis, Ford 6.8 V10 gas)
1999 Ford Escort SE (2.0L 4cyl gas)
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Re: City water input - check valve?
« Reply #9 on: April 12, 2017, 06:58:43 PM »
I tried removing the pressure regulator while I was there just to see what happened. WOW. But I put it back as I fitted it for a reason. :)Dougie.

Same Here Dougie. My regulator is set @ 55psi. We were at a park last week where the psi was 90.. glad it's on there.

Joe, it made that much difference?  If it did, I just may do it too.

Yes it does make a noticeable difference Rene. On a Good, Better, Best scale.. I would say it's: Much, Much Better.

As far as doing this Mod.. The ease of doing it will depend on the Brand & Style of City Water connection your manufacture used. And where it at, in relation to the work involved.

Some, I've been able to just Pull the check valve assembly out with a pair of needle nose pliers, Some (like mine) I've had to get behind the connection panel, remove the gland nut, to remove the assembly. Some, I've had to Replace the whole connection part.. with one that can be gutted (for lack of a better word).

IMO.. It's doable & worth doing. 
Joe

Tow an 016 29RS "Reflection" 5r w/Trailair pin box...with a 2012 Ford DRW, F-350, 4x4, Loaded de-Blinged Lariat CC, 6.7 Diesel.. Wife & I, Beck & Sheeka the Dogs.. And as of 5-17.. Lizzie, the Kitten in Training.

Rene T

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Re: City water input - check valve?
« Reply #10 on: April 12, 2017, 07:27:34 PM »
Thanks Joe.
The threads on my hose fitting aren't the best in the world and I'm been thinking about replacing that fitting. It's on my TO DO List now.

I'm using one of these now so it should work good in place of the check valve:

https://www.amazon.com/Gilmour-03V-Garden-Connector-Shut-Off/dp/B0006U66B6
« Last Edit: April 12, 2017, 07:29:58 PM by Rene T »
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Dougie Brown

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Re: City water input - check valve?
« Reply #11 on: April 12, 2017, 07:39:06 PM »
Rene, that'll work.

Dougie.
2000 Winnebago Adventurer 37G (F53 chassis, Ford 6.8 V10 gas)
1999 Ford Escort SE (2.0L 4cyl gas)
Brits spending half each year in the US and/or Canada
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Re: City water input - check valve?
« Reply #12 on: April 12, 2017, 10:29:48 PM »
Rene, that'll work.Dougie.

Yep, X2.

FWIW.. My city water connection is Horizontal, to the Vertical.. so I used one of those valves that is on a 90. Then one like you linked, on the end of the RV hose... with a brass Quik Disconnect set up.. to connect the two. (WalMart)

No threading, No Leaks, No Drips, No Spraying, No Pliers. Connect the QD.. turn on both valves.. dun deal.

 
Joe

Tow an 016 29RS "Reflection" 5r w/Trailair pin box...with a 2012 Ford DRW, F-350, 4x4, Loaded de-Blinged Lariat CC, 6.7 Diesel.. Wife & I, Beck & Sheeka the Dogs.. And as of 5-17.. Lizzie, the Kitten in Training.

Rene T

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Re: City water input - check valve?
« Reply #13 on: April 13, 2017, 08:07:56 AM »
Yep, X2.

FWIW.. My city water connection is Horizontal, to the Vertical.. so I used one of those valves that is on a 90. Then one like you linked, on the end of the RV hose... with a brass Quik Disconnect set up.. to connect the two. (WalMart)

No threading, No Leaks, No Drips, No Spraying, No Pliers. Connect the QD.. turn on both valves.. dun deal.

 

Be careful with some of those so called brass QD. I bought some from a Home Depot a few years ago. After using them for a while, the finish started to peel off and they started to pit. They were aluminum and plated with brass. Nothing but junk.
Rene & Lucille & co-pilot Buddy
AKA  Pep N Mem
2011 Chevy Duramax 2500 HD 4X4
2011 Montana High Country 343RL
From the Granite State of NH
& Florida Snowbird in Lakeland FL

BIG JOE

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Re: City water input - check valve?
« Reply #14 on: April 13, 2017, 08:45:38 AM »
Be careful with some of those so called brass QD. I bought some from a Home Depot a few years ago. After using them for a while, the finish started to peel off and they started to pit. They were aluminum and plated with brass. Nothing but junk.

Good point. I've never had, or seen that.. but will keep a close eye out for it.

Thanks
Joe

Tow an 016 29RS "Reflection" 5r w/Trailair pin box...with a 2012 Ford DRW, F-350, 4x4, Loaded de-Blinged Lariat CC, 6.7 Diesel.. Wife & I, Beck & Sheeka the Dogs.. And as of 5-17.. Lizzie, the Kitten in Training.

Dougie Brown

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Re: City water input - check valve?
« Reply #15 on: April 19, 2017, 10:46:11 PM »
So during this last week after removing the check valve and noting the initial good increase, the pressure has reverted to what it was. Hot or cold, when a faucet is turned on or the toilet flushed, the initial flow of water is normal but after less than a second, drops by about 40%. I've changed the hoses, fitted a new screen filter at the main connection where the check valve was, and stopped using a filter. No difference. It's back to mediocre.

Any more ideas?

Dougie.
2000 Winnebago Adventurer 37G (F53 chassis, Ford 6.8 V10 gas)
1999 Ford Escort SE (2.0L 4cyl gas)
Brits spending half each year in the US and/or Canada
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BIG JOE

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Re: City water input - check valve?
« Reply #16 on: April 20, 2017, 01:01:50 AM »
So during this last week after removing the check valve and noting the initial good increase, the pressure has reverted to what it was. Hot or cold, when a faucet is turned on or the toilet flushed, the initial flow of water is normal but after less than a second, drops by about 40%. I've changed the hoses, fitted a new screen filter at the main connection where the check valve was, and stopped using a filter. No difference. It's back to mediocre.

Any more ideas?

Dougie.

I think what you are seeing is: The flow goes back to what seems "Normal".. because of possibly Low water pressure, verses RV plumbing diameter capacity.

No more ideas Dougie but here's my thinking on the whole RV Water Flow deal:

Bearing in mind, we are limited to 3/8ths, maybe 5/16ths Plumbing/Water lines on most RV's.. and [most] Park, CG water pressure is at 40~50 psi max.. which can greatly effect GPM flow capacity.. I eliminate as many restrictive components as possible.

What I've done, and do:

1. Removed ALL faucet/shower head flow restrictor disks.
 
2. Removed the back flow/check valve assembly from the City/Dry camping hose connection.

3. Drill out ALL the faucet aerators to 1/4 inch (+ if possible) , or modified* them for better flow.

4. Use O ring style washers on ALL (5/8ths) hose connections. No flat washers, No screen washers.

5. Use the Shortest** hose possible.. from the Park/CG hose bib.. to the Rig.

*  use twist drills, to enlarge the holes in the aerator assemblies.. yet still have some aeration.

** cut a 50' RV hose in to 25', 15', and 10' lengths.. use the shortest one.

The above, IJMO, gets me.. to git to.. as good as it CAN get ?
   
« Last Edit: April 20, 2017, 10:22:29 AM by BIG JOE »
Joe

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Re: City water input - check valve?
« Reply #17 on: April 20, 2017, 07:04:31 AM »
I think our plumbing lines are 3/8". I removed all fixture restrictors when our coach was new primarily because the water pump could not keep a low flow going without pulsing.
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BIG JOE

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Re: City water input - check valve?
« Reply #18 on: April 20, 2017, 10:15:08 AM »
I think our plumbing lines are 3/8". I removed all fixture restrictors when our coach was new primarily because the water pump could not keep a low flow going without pulsing.

True, I clarified that. (most RV's ?)

Naturally, I find that Park/CG's with Higher water pressures, I get Higher delivery at all the fixtures. Kind of a "Duh".. but worth a mention ?

I also have an adjustable pressure regulator, set @ 55 psi (normal S & B pressure ?) for.. just in case.

(We were at a Park the other week that had 90 psi.. at the hose bib !)
« Last Edit: April 20, 2017, 10:34:11 AM by BIG JOE »
Joe

Tow an 016 29RS "Reflection" 5r w/Trailair pin box...with a 2012 Ford DRW, F-350, 4x4, Loaded de-Blinged Lariat CC, 6.7 Diesel.. Wife & I, Beck & Sheeka the Dogs.. And as of 5-17.. Lizzie, the Kitten in Training.

mel s

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Re: City water input - check valve?
« Reply #19 on: April 20, 2017, 02:55:07 PM »
Is there a check valve between the incoming hose connector and the PEX pipes?  I ask because when incoming water pressure is good, the output in the coach is inconsistent but at best, mediocre. This has happened at three different campgrounds in the last week; the tank flush pressure is unaffected.  The access to what feels like a brass check valve is extremely limited plus it's lousy wet weather at the moment, so before I start the contortions, I thought I'd ask. Thanks.

PS: it's not a filter issue because I'm running without one currently.

Dougie.

Dougie Brown
On my coach there is not only a "check valve" in the water entry ... there is also a "screen" and a "pressure regulator".
If I put another pressure regulator in the hose the water pressure in my coach drops way to low...(to the point of being pretty much useless).

Dougie Brown

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Re: City water input - check valve?
« Reply #20 on: April 20, 2017, 04:08:35 PM »
I tried with and without the screen but made no difference. This morning though, I removed the replacement pressure regulator I fitted recently and the pressure in the RV is now perfect. I see it's not adjustable so it can stay out. I'll either replace it with an adjustable one or fit a straight inline on/off valve which I can open fully or partially to control whatever pressure the campground puts out.  I didn't suspect a new part (even thought it came from W***mart....::) ).
2000 Winnebago Adventurer 37G (F53 chassis, Ford 6.8 V10 gas)
1999 Ford Escort SE (2.0L 4cyl gas)
Brits spending half each year in the US and/or Canada
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BIG JOE

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Re: City water input - check valve?
« Reply #21 on: April 20, 2017, 05:18:40 PM »
I tried with and without the screen but made no difference. This morning though, I removed the replacement pressure regulator I fitted recently and the pressure in the RV is now perfect. I see it's not adjustable so it can stay out. I'll either replace it with an adjustable one or fit a straight inline on/off valve which I can open fully or partially to control whatever pressure the campground puts out.  I didn't suspect a new part (even thought it came from W***mart....::) ).

A shut of valve will [ONLY] control flow rate.. but.. X >pounds< of pressure at the source will Still be X pounds of pressure (static) into the RV water system, and fixtures.

RV plumbing systems are capable of higher pressures than say.. 60+ psi but that's where an adjustable regulator comes into play.

For the purposes of this Post: Say the park/cg pressure is 80. After an adjustable regulator is installed, I turn on all the faucets in the RV, adjust the regulator to 55 psi. Turn off the faucets. You may see the gauge pressure is still at (go back to) 80 psi (again Static psi). RV's will handle that.. but as you use water.. the delivered pressure will be 55.

It's the "Hammer effect" of [higher pressures] that can cause fittings/lines to fail ?     
« Last Edit: April 21, 2017, 05:23:26 PM by BIG JOE »
Joe

Tow an 016 29RS "Reflection" 5r w/Trailair pin box...with a 2012 Ford DRW, F-350, 4x4, Loaded de-Blinged Lariat CC, 6.7 Diesel.. Wife & I, Beck & Sheeka the Dogs.. And as of 5-17.. Lizzie, the Kitten in Training.

mel s

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Re: City water input - check valve?
« Reply #22 on: April 21, 2017, 11:06:05 AM »
I tried with and without the screen but made no difference. This morning though, I removed the replacement pressure regulator I fitted recently and the pressure in the RV is now perfect. I see it's not adjustable so it can stay out. I'll either replace it with an adjustable one or fit a straight inline on/off valve which I can open fully or partially to control whatever pressure the campground puts out.  I didn't suspect a new part (even thought it came from W***mart....::) ).

Dougie Brown
A straight inline on/off water valve can/will only affect/change the flow/volume of the water.... it can not/will not adjust/change/regulate the water pressure.

Dougie Brown

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Re: City water input - check valve?
« Reply #23 on: April 21, 2017, 11:19:45 AM »
Yep thanks. Every day's a school day. :). It's gonna be an adjustable regulator.

Dougie.
2000 Winnebago Adventurer 37G (F53 chassis, Ford 6.8 V10 gas)
1999 Ford Escort SE (2.0L 4cyl gas)
Brits spending half each year in the US and/or Canada
www.rv-and.us

 

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