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29-09-2011, 19:41
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#1
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Registered User
Join Date: Dec 2006
Boat: Looking for a new boat
Posts: 2,552
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Plumbing City Water into Boat's Fresh Water System
Is there a way to plumb city water into the boat so that I don't have to continuously cycle through my water tanks and refill them periodically? In other words is there a way to leave the hose hooked to the boat when at the dock?
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29-09-2011, 20:22
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#2
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Registered User
Join Date: May 2011
Location: Miami Florida
Boat: Ellis Flybridge 28
Posts: 4,057
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Re: Plumbing City Water into Boat's Fresh Water System
Sure, it's easy. This is what you attach the supply hose to: Jabsco Water Pressure Regulator - 44411-1054
Then you put a Tee in your water system after your pump. Run a line, hose or pex tubing, to the tee from the inlet fitting. It's a good idea to turn off the dock water every time you leave the boat. If something failed while you were gone, the hose could put a lot of water into your boat.
__________________
Retired from Hopkins-Carter Marine Supplies
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29-09-2011, 20:40
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#3
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Registered User
Join Date: May 2008
Location: daytona beach florida
Boat: csy 37
Posts: 2,976
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Re: Plumbing City Water into Boat's Fresh Water System
yes there is. there are deck fitting available that you can affix to your hull or deck where a 'garden' hose can be connected. on the boat side of the fitting put a pressure limiting device, then a hose to a 'T' on the output side of your onboard water pressure pump. that's basically it.
my boat came set up with a dockside water inlet. i disconnected it and capped it off. fastest way to sink your boat at the dock is to hook it up to shoreside water and then have it blow a line somewhere and fill your boat up faster than your pumps can pump it out....
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29-09-2011, 20:43
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#4
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Moderator... short for Cat Wrangler
Join Date: Jul 2009
Location: San Francisco
Boat: Cal 28 Flush Deck
Posts: 5,559
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Re: Plumbing City Water into Boat's Fresh Water System
I hang one of these thru the companionway into the galley...
Move it out when we leave so as to not create a small ocean in the boat...
__________________
Sara
ain't what ya do, it's the way that ya do it...
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30-09-2011, 05:11
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#5
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Registered User
Join Date: Dec 2006
Boat: Looking for a new boat
Posts: 2,552
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Re: Plumbing City Water into Boat's Fresh Water System
Quote:
Originally Posted by HopCar
Sure, it's easy. This is what you attach the supply hose to: Jabsco Water Pressure Regulator - 44411-1054
Then you put a Tee in your water system after your pump. Run a line, hose or pex tubing, to the tee from the inlet fitting. It's a good idea to turn off the dock water every time you leave the boat. If something failed while you were gone, the hose could put a lot of water into your boat.
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Why would I run the city water after the pump? Wouldn't that stop the water from getting to the heater? Or would the heater be after the pump?
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30-09-2011, 05:25
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#6
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Senior Cruiser
Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 49,139
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Re: Plumbing City Water into Boat's Fresh Water System
Quote:
Originally Posted by unbusted67
Why would I run the city water after the pump? Wouldn't that stop the water from getting to the heater? Or would the heater be after the pump?
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Excepting the water tank, all of the potable water plumbing is after the pump.
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"
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30-09-2011, 05:35
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#7
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Registered User
Join Date: Apr 2010
Location: Newport News VA
Boat: Egg Harbor sedan cruiser 1970
Posts: 958
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Re: Plumbing City Water into Boat's Fresh Water System
pump is just another water source, the source being the tank. The pump with pressure switch wont let water flow backwards into the tank. So the city water goes after the pump and pressurizes hot water tank and cold water lines.
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30-09-2011, 05:51
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#8
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Registered User
Join Date: Dec 2006
Boat: Looking for a new boat
Posts: 2,552
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Re: Plumbing City Water into Boat's Fresh Water System
Ooooohhhhhh I see now what you are saying, I just looked at some diagrams. Can you plumb in an additional T so that you can have the deck fill that is the regulator fill your tanks or does the fact that it is a regulator prohibit that from happening?
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30-09-2011, 07:03
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#9
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Registered User
Join Date: Sep 2007
Location: Annapolis, Bahamas
Boat: 1983 Gulfstar 36
Posts: 1,253
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Re: Plumbing City Water into Boat's Fresh Water System
Quote:
Originally Posted by unbusted67
Ooooohhhhhh I see now what you are saying, I just looked at some diagrams. Can you plumb in an additional T so that you can have the deck fill that is the regulator fill your tanks or does the fact that it is a regulator prohibit that from happening?
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A regulator only drops the pressure a bit. It cannot "know" when the tank is full.
I work part time for the local Tow Boat US guy. Nothing sinks more boats than shore side water! Turn it off when you leave the boat for more than the hour or two it takes to fill a boat.
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Will & Muffin
Lucy the dog
"Yes, well.. perhaps some more wine" (Julia Child)
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30-09-2011, 07:05
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#10
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Registered User
Join Date: Mar 2003
Location: Wherever the boat is!
Boat: Marine Trader 34DC
Posts: 4,619
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Re: Plumbing City Water into Boat's Fresh Water System
This really is not a great idea IMO. We have seen first hand a two of boats sink at the dock as a result of a failure in the water system, and know of several others. In addition, letting your water tanks sit for long periods of time will guarantee issues with your water which will spread to the entire system in a short period of time. The best solution is to use the water in the tank and turn it over often. We actually took both of the FW regulators off of both of our boats so we would not be tempted. We have had hose failures in our system on both boats over the years and it emptied our water tanks in the bilge but was limited to the amount in the tank. Your bilge pumps will probably not be able to keep up with a continuous flow from the city supply for a period of time. So why risk it just to not have to fill the tanks on a regular basis? Chuck
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30-09-2011, 07:06
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#11
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Registered User
Join Date: May 2011
Location: Miami Florida
Boat: Ellis Flybridge 28
Posts: 4,057
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Re: Plumbing City Water into Boat's Fresh Water System
I'm not sure why you would want to put an inlet to fill your tank. I just stick the hose into the deck pipe and wait for water to come out the vent. If you want to be able to fill your tank by screwing a hose to the boat install another regulated inlet and put the tee between the tank and the pump. As much as I'd like to sell you two inlets, I really don't think this is a good idea.
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Retired from Hopkins-Carter Marine Supplies
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30-09-2011, 07:19
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#12
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Eternal Member
Join Date: Feb 2008
Location: Las Brisas Panama AGAIN!
Boat: Simpson, Catamaran, 46ft. IMAGINE
Posts: 4,507
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Re: Plumbing City Water into Boat's Fresh Water System
Just another chance for something to go wrong. It will also show if there is any weeping at all with your system. Cracked inspection plates, bad hose, or clamps, etc. etc........ i2f
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30-09-2011, 07:26
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#13
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Registered User
Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 20,420
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Re: Plumbing City Water into Boat's Fresh Water System
Quote:
Originally Posted by unbusted67
Is there a way to plumb city water into the boat so that I don't have to continuously cycle through my water tanks and refill them periodically? In other words is there a way to leave the hose hooked to the boat when at the dock?
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I would NOT: a friend of ours nearly sank his boat when one of the boat-side fittings let go and with the tap at the dockside open the boat started filling the bilges with fresh water.
Other than this, I have seen remotely (wired) controlled taps in local gardening store. Power off closes the tap, power on opens the tap.
b.
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30-09-2011, 08:12
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#14
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Moderator Emeritus
Join Date: Sep 2007
Location: Eastern Tennessee
Boat: Research vessel for a university, retired now.
Posts: 10,406
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Re: Plumbing City Water into Boat's Fresh Water System
It is an ok idea IF you remember to turn off the water each and every time before leaving the boat. You would also want to install a loud bilge alarm for when you are aboard if the boat starts flooding.
__________________
David
Life begins where land ends.
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30-09-2011, 09:13
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#15
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Registered User
Join Date: Apr 2008
Location: Oro Bay Puget Sound
Boat: Irwin sloop
Posts: 407
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Re: Plumbing City Water into Boat's Fresh Water System
I found that explaining the advantages and convenience of plumbing shore water to the boat somewhat difficult and embarassing when the insurance adjuster was laughing his ass off.
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