[C320-list] Hot Water Heater Cold Water Line - Check Valve

[Brad Kuether]

Paul,

It is my understanding (I am starting to understand this boat, a little 
anyway) that a cold water line feeds the hot water heater.  Are you asking 
if there is some type of valve that prevents the hot water from flowing back 
into the cold water line that feeds it?

If this is the case, wouldn't the water pressure from the water in the water 
line prevent that?  I can't see water from the hot water tank finding its 
way back to water tank as it too has water in it and has pressure....

What is the concern?

Or am I not getting it?  (which may be why no one replied?)

Not being crass.

-Brad, Mary, Monica, and Jarod
"Independence"
2004 Catalina 320 Hull 1006
Middle River, MD


----- Original Message ----- 
From: "Paul Rickman" <ilove2sail at verizon.net>
To: <C320-List at Catalina320.com>
Sent: Wednesday, September 02, 2009 7:22 PM
Subject: [C320-list] Hot Water Heater Cold Water Line - Check Valve


A few days ago, I put out a question about the Whale Quick Connect fitting 
and a back flow preventor
on the cold water line right next to the hot water heater. I didn't get any 
answer. So lets try this:

Does the cold water line require a "check valve"? Will a check valve prevent 
the hot water from flowing
back into the cold water line? Does anyone know what people use for a check 
valve, if any, in the cold water
line? Check valve = back flow preventor.

I'm going out to some of my local boat supply stores tomorrow to check on 
plumbing supplies.

Thanks,
Paul
Affinity 657
Baby Bridge Marina