hot water issue - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 08-03-2011
JSL3's Avatar
<----- thinking of this
 
Join Date: Jun 2007
Location: Chesapeake Bay, South River
Posts: 187
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 8
JSL3 is on a distinguished road
hot water issue

On my 1986 Pearson 28-2, Iím having hot water issues. The hot water gets scalding hot after running the engine for awhile. The hot water is bleeding back into the cold side of the pressurized water system. So after the engine runs, all I have is hot water from either faucet (head and galley sink) both hot and cold sides. I have the 3/8Ē grey Quest (Qest) piping. This issue is relatively new meaning it didnít used to be this way a couple of seasons ago. It has slowly been getting worse over the past 2 years.
The Raritan H20 heater installation instructions show a check (backflow preventer) valve on the cold side inlet to the H20 heater (which I donít think I have currently in my setup). I am planning on ordering a new Quest check valve like this from a RV parts store.
So 2 questions.
1. Does it sound like Iím headed in the right direction to solve this HOT water issue?
2. Does anyone know what kind of pipe dope to use on quest fittings? Is it just normal everyday plumbing pipe dope or perhaps Teflon tape? You can see some white stuff on some of the fitting threads in the picture.
Thanks in advance.
Here is a picture of the current setup.
__________________
~Jim
Ramble On
1986 Pearson 28-2
Reply With Quote Share with Facebook
  #2  
Old 08-03-2011
Tim R.'s Avatar
Senior Member
 
Join Date: Mar 2003
Location: Portland, Maine
Posts: 1,536
Thanks: 1
Thanked 26 Times in 25 Posts
Rep Power: 12
Tim R. is on a distinguished road
Yes. Backflow preventer between tank and Tee on the lower hose. Also good to add a mixing valve to temper your hot water. engine likely running at 160į which is dangerous hot for domestic supply.

I use Teflon tape to lubricate the threads and do not over-tighten. The thread does not seal the connection, the seat does.

I get my parts from these folks. Very friendly and helpful.

http://www.mobilehomedepotmi.com/par...tings_qest.htm
__________________
Tim R.
Out cruising
1997 Caliber 40LRC

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

-----------------------------------------------------
Reply With Quote Share with Facebook
  #3  
Old 08-03-2011
JSL3's Avatar
<----- thinking of this
 
Join Date: Jun 2007
Location: Chesapeake Bay, South River
Posts: 187
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 8
JSL3 is on a distinguished road
Thanks for the response, Tim.
I like the idea of the thermostatic mixing valve, I'll look into that.
Teflon tape works, I have that in the basement.
And thanks for the link, I'll order from them.
__________________
~Jim
Ramble On
1986 Pearson 28-2
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Frozen Bilge Water -- Issue? maddata Gear & Maintenance 13 02-09-2009 09:36 PM
N2k issue witzgall Gear & Maintenance 2 10-29-2008 01:29 PM
GPS issue drynoc Gear & Maintenance 7 10-28-2008 04:53 PM
AIS E-80 issue thekeip Gear & Maintenance 3 10-02-2008 02:05 PM
ICW Issue tm3 Cruising & Liveaboard Forum 3 12-02-2006 09:41 AM


All times are GMT -4. The time now is 12:25 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012