Cruisers Forum
 


Join CruisersForum Today

Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 11-08-2011, 05:38   #1
Registered User

Join Date: Apr 2010
Location: Newport News VA
Boat: Egg Harbor sedan cruiser 1970
Posts: 835
Send Over-Pressure Shore Water Over the Side with Pressure Valve ?

I have a 75 lb over pressure valve not hooked up yet.
I was thinking to put it into the shore side line with a tee so if the pressure was too high, it would release the pressure and send it overboard.
I think it used to be setup to vent into the bilge.

How many situations would you find where marina water pressure was that high?
I never have, they all seem rather low and weak pressured.
__________________

sdowney717 is offline   Reply With Quote
Old 11-08-2011, 05:53   #2
Senior Cruiser
 
GordMay's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 33,653
Images: 240
Re: should I send over pressured shore water over the side with pressure valve?

A shore side water pressure regulator/reducer should limit inlet water pressure to 35 - 45 psi, and have a built-in backflow preventer.
__________________

__________________
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?"



GordMay is offline   Reply With Quote
Old 11-08-2011, 06:20   #3
Registered User

Join Date: Apr 2010
Location: Newport News VA
Boat: Egg Harbor sedan cruiser 1970
Posts: 835
Re: should I send over pressured shore water over the side with pressure valve?

Oh your right, I forgot I do have a regulator, I think taco branded.

I have this overpressure valve which I dont know why it was ever put on the boat.
It used to be plumbed into the hot water heater, YET that heater also has the temp pressure relief valve some maybe it was leftover from a prior owner.
I saw the same valve at Lowes in the well water pump section and it had a pressure rating of 75lb.
So perhaps it has no value or use on the boat anymore.
sdowney717 is offline   Reply With Quote
Old 13-08-2011, 20:39   #4
Senior Cruiser
 
osirissail's Avatar

Cruisers Forum Supporter

Join Date: Feb 2009
Location: A real life Zombie from FL
Boat: Gulfstar 53 - Osiris
Posts: 5,416
Images: 2
Re: Send Over-Pressure Shore Water Over the Side with Pressure Valve ?

You must be filthy rich if you can dump water over the side. Marinas I know charge per gallon and it is not cheap. Get a pressure regulator from an RV store.
Attached Images
 
osirissail is offline   Reply With Quote
Old 15-08-2011, 19:36   #5
Registered User

Join Date: Apr 2010
Location: Newport News VA
Boat: Egg Harbor sedan cruiser 1970
Posts: 835
Re: Send Over-Pressure Shore Water Over the Side with Pressure Valve ?

water and electric are unmetered at our slips

I dont abuse the privilege.
sdowney717 is offline   Reply With Quote
Old 28-06-2018, 17:33   #6
Registered User

Join Date: Oct 2015
Posts: 1,159
Re: Send Over-Pressure Shore Water Over the Side with Pressure Valve ?

Quote:
Originally Posted by sdowney717 View Post
I have a 75 lb over pressure valve not hooked up yet.
I was thinking to put it into the shore side line with a tee so if the pressure was too high, it would release the pressure and send it overboard.
I think it used to be setup to vent into the bilge.

How many situations would you find where marina water pressure was that high?
I never have, they all seem rather low and weak pressured.
Marinas in populated areas are hooked to city mains. Mains water pressure can be as high as 80PSI--depending on what city, and where you are in the distribution system.

The simple answer is NO... you can not use this to regulate your water pressure. If you came to a marina that had 80PSI city water, it would be dumping water overboard ALL THE TIME!!!!

Use a proper pressure reducer if you really have to connect to the mains water supply. Although as a word of warning: I have seen three boats sink at the dock because they were connected full time to marina water.

A relief valve like this belongs only on the outlet of the water heater in case it over pressures. A "temperature" valve does not do the same thing and I don't think that is what you have. Every water heater NEEDS a PRESSURE relief valve.
billknny is offline   Reply With Quote
Old 28-06-2018, 17:41   #7
Moderator
 
a64pilot's Avatar

Cruisers Forum Supporter

Join Date: Oct 2013
Location: Albany Ga.
Boat: Island Packet 38
Posts: 22,854
Send Over-Pressure Shore Water Over the Side with Pressure Valve ?

I wouldn’t connect shore water to my boat, that could sink it.
I fill my water tank and run off of that. I know if connected to shore water that would save wear on my pump, but I don’t think the risk is worth it.
a64pilot is offline   Reply With Quote
Old 28-06-2018, 18:45   #8
Senior Cruiser
 
StuM's Avatar

Cruisers Forum Supporter

Join Date: Nov 2013
Location: Port Moresby,Papua New Guinea
Boat: FP Belize Maestro 43
Posts: 7,995
Re: Send Over-Pressure Shore Water Over the Side with Pressure Valve ?

Quote:
Originally Posted by a64pilot View Post
I wouldn’t connect shore water to my boat, that could sink it.
I fill my water tank and run off of that. I know if connected to shore water that would save wear on my pump, but I don’t think the risk is worth it.

+1
__________________

StuM is offline   Reply With Quote
Reply

Tags
water

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Check Valve in Fresh Water System CSY Man Plumbing Systems and Fixtures 5 31-08-2011 17:08
Shore Water Pressure Reducer Safety schoonerdog Plumbing Systems and Fixtures 30 11-08-2011 09:47



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 00:49.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.