rvupgradestore.com Composet Products Fridge Defend
RV Life Magazine RV Park Reviews RV Trip Wizard

Author Topic: City water hook up question. (Newbie here)  (Read 444 times)

CJAG

  • ---
  • Posts: 55
  • Just trying to have some fun along the way!
City water hook up question. (Newbie here)
« on: December 06, 2018, 09:33:58 AM »
Do you use your water pump when hooked up to city water? Or does the pressure of the open hose take care of it? If so is there a risk of seals blowing because of pressure? Curious about this since we are leaving on our first long trip in 2 weeks.
2008 Coachmen Aurora 36 FWS
Awesome Wife
2 Beach Cruisers and a dog
Houseboat Owner (Lake Shasta)
RV life is next!

Great Horned Owl

  • ---
  • Posts: 1351
  • Lake county, IL
Re: City water hook up question. (Newbie here)
« Reply #1 on: December 06, 2018, 09:39:10 AM »
Most RVs have a "demand" type of water pump that will only turn on when the pressure in the line connected to the pump falls below some preset level. If you are connected to city water. the pressure in the lines will never fall below that level, and the pump will never turn on.

Joel
Joel & Dorothy
Retired electronics engineer. Avid photographer, paddler & birder.
2011 Silverado 2500HD, Duramax, 4x4,crew cab, 8' bed
Palomino Puma 253-FBS  27' 5th wheel
1994 19' Class B Horizon / Chevy

Gizmo100

  • ---
  • Posts: 237
Re: City water hook up question. (Newbie here)
« Reply #2 on: December 06, 2018, 10:18:28 AM »
Don't forget about a pressure regulator for the city hookup

This a cheap one that will work. But the pressure was to low for us.
https://www.amazon.com/Camco-Pressure-Regulator-High-Pressure-40055/dp/B003BZD08U/ref=sr_1_3?ie=UTF8&qid=1544112874&sr=8-3&keywords=rv+pressure+regulator

We upgraded to this one
https://www.etrailer.com/RV-Fresh-Water/Valterra/A01-1117VP.html
2017 Heartland Trail runner 24 SLE
2017 Ford F150 3.5 Eco boost

Bobtop46

  • ---
  • Posts: 488
    • Work Camper
Re: City water hook up question. (Newbie here)
« Reply #3 on: December 06, 2018, 12:16:09 PM »
No. Turn the pump off when connected to city water.  A pressure regulator is only required at parks with high water pressure.  I carry one and have used it a couple times.  I test the water pressure first with my hand or visually.  Usually, with exceptions, the water pressure is normal or low.  Once in a while you find a park high high pressure and I put the regulator then.
2007 Coachman Aurora 36FWS
2006 Mini Cooper S

billwild

  • ---
  • Posts: 752
Re: City water hook up question. (Newbie here)
« Reply #4 on: December 06, 2018, 01:25:09 PM »
Buy a pressure regulator and always leave it attached to your water hose line. We did not and hooked up to a normal park. When I turned the water on, all I could here was my wife yelling "there is water coming out of the wall". High pressure blew apart our waterline in the kitchen, and had to call in a professional to repair it. My best advice again, buy the pressure regulator and use it every time you hook up to city water.


Bill
« Last Edit: December 06, 2018, 01:27:55 PM by billwild »

FunSteak

  • ---
  • Posts: 180
Re: City water hook up question. (Newbie here)
« Reply #5 on: December 06, 2018, 01:40:14 PM »
Buy a pressure regulator and always leave it attached to your water hose line. We did not and hooked up to a normal park. When I turned the water on, all I could here was my wife yelling "there is water coming out of the wall". High pressure blew apart our waterline in the kitchen, and had to call in a professional to repair it. My best advice again, buy the pressure regulator and use it every time you hook up to city water.


Bill

I agree.  While most parks we've been to have seemed okay, some haven't.  Also, pressure can vary with usage upstream, so what seems fine when you check it can change.  30 seconds to install the regulator when you hook up is cheap insurance, IMO. 
JP & Karen
2017 Minnie Winnie 26a

thelazyl

  • ---
  • Posts: 57
Re: City water hook up question. (Newbie here)
« Reply #6 on: December 06, 2018, 01:42:40 PM »
Hello, another Newbie here.

I attached a photo from our wet bay.  Is the highlighted brass fitting a pressure regulator?  If not what is it?

I appreciate the help.

Ken & Sheila

  • Forum Staff
  • ---
  • *
  • Posts: 3702
  • Smokey 3
Re: City water hook up question. (Newbie here)
« Reply #7 on: December 06, 2018, 01:49:37 PM »
Hello, another Newbie here.

I attached a photo from our wet bay.  Is the highlighted brass fitting a pressure regulator?  If not what is it?

I appreciate the help.
BY the looks of it, that is a pressure regulator.
Ken & Sheila
2009 Monaco Camelot 42 PDQ
2019 Jeep Trailhawk Elite, 2006 Saturn Vue
Fur-ball kids: Ariel and Mia

Gizmo100

  • ---
  • Posts: 237
Re: City water hook up question. (Newbie here)
« Reply #8 on: December 06, 2018, 01:50:45 PM »
Hello, another Newbie here.

I attached a photo from our wet bay.  Is the highlighted brass fitting a pressure regulator?  If not what is it?

I appreciate the help.

It does look like one..(the pic's a little small).
It appears to be the cheaper one ($5.00) but it should work. I prefer this one myself
https://www.etrailer.com/RV-Fresh-Water/Valterra/A01-1117VP.html
It allows more flow and adjustable pressure.
2017 Heartland Trail runner 24 SLE
2017 Ford F150 3.5 Eco boost

FunSteak

  • ---
  • Posts: 180
Re: City water hook up question. (Newbie here)
« Reply #9 on: December 06, 2018, 01:52:13 PM »
Hello, another Newbie here.

I attached a photo from our wet bay.  Is the highlighted brass fitting a pressure regulator?  If not what is it?

I appreciate the help.

Photo is pretty small, but it looks like one.  Either that or possibly a quick disconnect.  Is the end threaded for a garden hose?
JP & Karen
2017 Minnie Winnie 26a

Larry N.

  • ---
  • Posts: 5436
  • Westminster, CO
Re: City water hook up question. (Newbie here)
« Reply #10 on: December 06, 2018, 01:53:25 PM »
Quote
If you are connected to city water. the pressure in the lines will never fall below that level, and the pump will never turn on.
Not necessarily true all the time. I've had a few occasions when I've inadvertently left the pump on and it would run when we opened a faucet. But I normally leave the pump off unless I find "city" pressure too low (that happens occasionally).
Larry and Mary Ann N.
2016 Newmar Ventana 3709 -ISB6.7 XT 360HP
2015 Wrangler Sahara Unlimited toad
Formerly: Trailmanor 2720SL, Bounder, Beaver
  de N8GGG

Isaac-1

  • ---
  • Posts: 1265
Re: City water hook up question. (Newbie here)
« Reply #11 on: December 06, 2018, 02:06:26 PM »
I agree it looks like a cheap inline regulator, they work sort of ok to protect plumbing, but are limited in their accuracy and have limited flow, you might want to upgrade to an adjustable one with a pressure gauge on it, available for about $25 on amazon under a number of brand names such as https://smile.amazon.com/Esright-Pressure-Regulator-Lead-Free-Adjustable/dp/B075RRCWGD/

Also note some RV's have pressure regulators built into the water inlet, they look something like this https://smile.amazon.com/SHURFLO-183-029-18-White-Pressure-Regulated/dp/B00074QUDU/ of course these do not protect the water hose only the interior plumbing

p.s. for safety sake I generally don't leave city water turned on at my coach, I only use it to refill the onboard tanks, and turn off my water pump when I am leaving the coach for the day, that way something like a toilet valve leak can't over flow my black tank and flood the coach while I am gone.
« Last Edit: December 06, 2018, 02:09:08 PM by Isaac-1 »
2002 Safari Trek 2830

Gary RV_Wizard

  • Forum Staff
  • ---
  • *
  • Posts: 65346
  • RVer Emeritus
Re: City water hook up question. (Newbie here)
« Reply #12 on: December 06, 2018, 04:11:03 PM »
Quote
If you are connected to city water. the pressure in the lines will never fall below that level, and the pump will never turn on.
That may or may not be true, depending on park pressure. In most park systems, when a faucet is opened the pressure will fall low enough for the pump to come on and supply some percentage of the total water flow. Most pumps are factory set to come on at about 45 psi, but some of us adjust upwards to 50-60 psi.
Gary
--------------
Gary Brinck
Summers: Black Mountain, NC
Home: Ocala National Forest, FL

John From Detroit

  • ---
  • Posts: 21683
  • ^My New Home^
    • Diabetics Forum
Re: City water hook up question. (Newbie here)
« Reply #13 on: December 06, 2018, 04:21:42 PM »
Back when I used to hook up full time I used a good regulator set to 50 PSI and the pump was a 45 PSI so it never came on even if I turned it on. which I did not.

Now I use tanked water (For assorted reasons) and only hook up long enough to fill the on board tank.
One of the reaons.. Last night it froze. Should again tonight but this afternoon in the 40's I tanked up  Hose is not going to freeze cause there is nothing to freeze. tank is heated.

Another.. local wate is high in chlorine.. Sitting in the tank it quickly dissipates.

Another  Summer I stay mostly in two places. one the water is a tad nasty.. The other good You can figure out which I fill up at.

Plus it is easier if I do not have to hook up EVERY time I park.
Nothing adds excitement like something that is none of your business
My Home is where I park it.

JudyJB

  • ---
  • Posts: 1141
Re: City water hook up question. (Newbie here)
« Reply #14 on: December 06, 2018, 05:12:35 PM »
If it IS a pressure regulator, it should be marked either 50 PSI or 60 PSI.  If it were me, I would go out and buy a new and better one. 

I also use water from my tank, by the way, mostly for the same reasons as John from Detroit.  I fill my fresh water tank once every few days, and that makes one less thing to connect and disconnect.  It helps that I live alone and do not use as much water as a couple does.
« Last Edit: December 06, 2018, 05:15:04 PM by JudyJB »
Full-timing for over six years in a
2012 Fleetwood Tioga Ranger 31N

thelazyl

  • ---
  • Posts: 57
Re: City water hook up question. (Newbie here)
« Reply #15 on: December 06, 2018, 05:23:46 PM »
Yes, the end is threaded for a garden hose.

Thank you for your help!

FunSteak

  • ---
  • Posts: 180
Re: City water hook up question. (Newbie here)
« Reply #16 on: December 07, 2018, 01:47:14 PM »
Yes, the end is threaded for a garden hose.

Thank you for your help!

Yup, should be a regulator.  I agree with posters above that you might be happier with the Valtera adjustable kind.  Better flow.
JP & Karen
2017 Minnie Winnie 26a

LarryL60

  • ---
  • Posts: 50
Re: City water hook up question. (Newbie here)
« Reply #17 on: December 08, 2018, 08:38:39 PM »
We always used the water pump at local RV parks, but often times took our chances without a regulator. We never had any issues with water pressure or surging.

DearMissMermaid

  • ---
  • Posts: 2565
  • Read my mis-adventures at DearMissMermaid.Com
    • DearMissMermaid.Com
Re: City water hook up question. (Newbie here)
« Reply #18 on: December 08, 2018, 09:05:13 PM »
Always use a water regulator.

Save yourself a lot of grief and worry.

Sometimes I leave the water pump on so it will kick in if water pressure drops. Also it will kick in if they turn off the water.

I was dying my hair and needed to give it a good long rinse. I had the water pump on and it's a good thing!

The park decided to shut off the water for repairs. There I would have been with drippy staining hair dye trying to get out of shower to turn on pump.

http://DearMissMermaid.Com

Living, working. playing  in a 1992 Holiday Rambler Imperial 36' 5th Estate, formerly 8 years 24/7 in a Class C, 1994 Tioga Montara, 28'

Pack half the stuff and twice the cash.
http://dearmissmermaid.blogspot.com/

jackiemac

  • Forum Staff
  • ---
  • *
  • Posts: 3024
Re: City water hook up question. (Newbie here)
« Reply #19 on: December 09, 2018, 04:13:09 AM »
I want to point out that in our trailer the pump is only used to pump water from our holding tank so it has to have sufficient water in it before the pump draws anything, or it just pulls air and can remain on when water fawcett is off.

I presume this is the case for everyone else, but as OP ( original poster ) is new I just wanted to be clear.  Correct me if other RVs work differently.

If pressure from city water low then we fill holding tank and use pump so that dual source supply gives us more water.
« Last Edit: December 09, 2018, 04:14:41 AM by jackiemac »
Jackie n Steve - Happy Scottish Travellers

2017 Heartland Sundance 288rls
2016 Dodge Ram 2500 6.4L Hemi

Back home in Scotland awaiting May 2019

Larry N.

  • ---
  • Posts: 5436
  • Westminster, CO
Re: City water hook up question. (Newbie here)
« Reply #20 on: December 09, 2018, 06:22:16 AM »
You have it right, Jackie, the pump draws from the tank, not from the shore connection.
Larry and Mary Ann N.
2016 Newmar Ventana 3709 -ISB6.7 XT 360HP
2015 Wrangler Sahara Unlimited toad
Formerly: Trailmanor 2720SL, Bounder, Beaver
  de N8GGG

Gary RV_Wizard

  • Forum Staff
  • ---
  • *
  • Posts: 65346
  • RVer Emeritus
Re: City water hook up question. (Newbie here)
« Reply #21 on: December 09, 2018, 09:56:45 AM »
Also, if both the pump and the shore (city) source are on, water will be drawn from both sources in proportion to the pressure of each.  If they are roughly the same, the water usage will be about 50/50 (equal) from each source, but if the pump pressure is notably higher than the city source, most of the water will come from the tank.   Regardless, you must keep an eye on the water level in the tank so that the pump never sucks air as jackiemac describes.
Gary
--------------
Gary Brinck
Summers: Black Mountain, NC
Home: Ocala National Forest, FL

jackiemac

  • Forum Staff
  • ---
  • *
  • Posts: 3024
Re: City water hook up question. (Newbie here)
« Reply #22 on: December 09, 2018, 02:09:55 PM »
Also, if both the pump and the shore (city) source are on, water will be drawn from both sources in proportion to the pressure of each.  If they are roughly the same, the water usage will be about 50/50 (equal) from each source, but if the pump pressure is notably higher than the city source, most of the water will come from the tank.   Regardless, you must keep an eye on the water level in the tank so that the pump never sucks air as jackiemac describes.
that's interesting Gary, didn't  know that. Thanks for the clarification.
Jackie n Steve - Happy Scottish Travellers

2017 Heartland Sundance 288rls
2016 Dodge Ram 2500 6.4L Hemi

Back home in Scotland awaiting May 2019

FunSteak

  • ---
  • Posts: 180
Re: City water hook up question. (Newbie here)
« Reply #23 on: December 10, 2018, 07:49:49 AM »
We always used the water pump at local RV parks, but often times took our chances without a regulator. We never had any issues with water pressure or surging.

Respectfully, you might not ever have a problem - until you do.   ;)  And I can promise that if it happens, it will cost a LOT more than a regulator. 

I like cheap insurance.   :)
JP & Karen
2017 Minnie Winnie 26a

Rene T

  • Forum Staff
  • ---
  • *
  • Posts: 12614
  • Every day is payday and every payday I have off
Re: City water hook up question. (Newbie here)
« Reply #24 on: December 10, 2018, 08:40:05 AM »
Respectfully, you might not ever have a problem - until you do.   ;)  And I can promise that if it happens, it will cost a LOT more than a regulator. 

I like cheap insurance.   :)

Right now, the pressure at my CG is 70 PSI. It goes up to over 100 PSI at times.
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

John From Detroit

  • ---
  • Posts: 21683
  • ^My New Home^
    • Diabetics Forum
Re: City water hook up question. (Newbie here)
« Reply #25 on: December 11, 2018, 09:27:37 AM »
When I was in GA (Pump set to 50 PSI in that park) I was talking with the owner and another RVer who mentioned being in a park (Where I am currently parked) with 120 PSI measured pressure.   

I do not use a regulator. (Even if I have a very good one) but I fill the on-board and shut off city water. I never leave it under static pressure. And never apply city pressure to the "House" system.  Not only to they over pressure ... they over chlorinate and using the fresh tank allows that to evaporate or break down so the water tastes better. Even filterd I can taste the bleach from the tap.
Nothing adds excitement like something that is none of your business
My Home is where I park it.