[C320-list] Hot water heater issue

Sat Jun 9 17:22:29 PDT 2012

Mark,

Sorry It's taken me so long to get back to you. I've been out on the bay for 
a few days. The water heater on my
1999 320 is one of 600 series, s600 I think. Not the 1700 series you mentioned.

________________________________
 From: Mark Gillingham <markgill at uwalumni.com>
To: C320-List at catalina320.com 
Sent: Thursday, June 7, 2012 1:52 PM
Subject: Re: [C320-list] Hot water heater issue

This is great information--catalog page numbers!  I give you back the PDF
images of these pages from the 2011 catalog.

The host that is blowing off is at the top of the tank. Come to think if
it, it must only blow when the tank heats. It's always (I think) blown
after heating the engine with the water pump on. I'll do more investigation
on when and why it blows but I think I must replace the hose at any rate.
It's wearing near the clamp.

I give you back the PDF images of these pages from the 2011 catalog.

Water Heaters: Page
487<http://catalogs.westmarine.com/guide/2011annualecatalog/487.asp#>
I
take it that we have the Raritan 1700 series. Replacement parts for
1700<http://www.westmarine.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10001&storeId=11151&partNumber=256862&cid=2012Annual>
.
Whale parts: Page
512<http://catalogs.westmarine.com/guide/2011annualecatalog/512.asp#>

For my purpose, 3/4" ID radiator hose might do?

Mark Gillingham | gplus.to/MarkGillingham | Support a struggling
student<http://101010scholarship.info>
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On Wed, Jun 6, 2012 at 6:00 PM, Paul Rickman <ilove2sail at verizon.net> wrote:

> Mark,
>
> According to West Marine catelog, page 487, the cold/hot in and out port
> size is 3/4 ". I think anyone will charge for one foot so I'd just get one
> foot and use what you need. I think I used five inch. Make certain you
> get something that will withstand heat.
>
> I'm not sure how to tell if the pressure relief valve is bad. But heat up
> your water and check the temp. My hose was blowing off the non-return
> valve -- it was plastic and too small I think. Once I bought the Whale
> inline non-return (brass)  valve on page 512, West Marine I've not had a
> problem with Whale fitting letting go.
>
> Where is  yours blowing off? Is it only after the water heats up?
> Calling Seaward may solve your problem.
> Seaward Products
> 3721 Capitol Ave
> Whittier, CA 90601
> Ph: (562) 699-7997 • Fax: (562) 699-0908
> Last Updated: 2011-12-29
>
>
>
>
>
>
> ________________________________
>  From: Mark Gillingham <markgill at uwalumni.com>
> To: C320-List at catalina320.com
> Sent: Wednesday, June 6, 2012 2:38 PM
> Subject: Re: [C320-list] Hot water heater issue
>
> Do you recall the dimensions and type of the short host at the top of the
> heater--the hot side? I'm having trouble matching it.
>
> Are you saying that if the host blows off often, the relief valve may be
> broken? My host blows of regularly for the past two seasons.
>
> Mark
>
> Speakeasy #612
>
>
> On Tue, May 8, 2012 at 4:15 PM, Paul Rickman <ilove2sail at verizon.net>
> wrote:
>
> > Chuck,
> >
> > I've blown a hose off before, but in my case I thought it was because the
> > back flow preventer (plastic at the time) was installed too close to the
> > heater.
> > I lengthened the hose coming off the hot side, and bought a new brass
> back
> > flow
> > preventer. Have not had a hose blow off since. Last year I installed a
> new
> > pressure
> > relief valve (early in the season) because I thought the old one was
> > leaking.
> > According to Seaward, all the valves are the same on their heaters. 13
> > years seems
> > a short time for the heater to fail. My earlier point about the anode, is
> > that perhaps
> > it failed due to not having an anode. The aluminum tank has a lap seal,
> > and that
> > is what failed. Who knows, it's a boat.
> >
> > Paul
> > Affinity 657
> >
> >
> >
> >
> > ________________________________
> >  From: Chuck and Kathy Mueller <katchu at chartermi.net>
> > To: c320-list at lists.catalina320.com
> > Sent: Tuesday, May 8, 2012 4:59 PM
> > Subject: [C320-list] Hot water heater issue
> >
> > Hi Paul -
> >
> > I found that if you have the water system pressurized and then turn on
> the
> > water heater, that it builds up a lot of extra pressure.  In my case, it
> > blew a hose off and pumped all the water from the tanks into the bilge
> > before I figured out the problem.  So now I shut off the water pump and
> > relieve the pressure before I either turn on the heater or run the
> engine.
> > That keeps the pressure down and might help my water heater to last a
> > little longer.
> >
> > Chuck Mueller
> > Northwind #676
> > Holland, MI
> > ------
> > >
> > > Message: 1
> > > Date: Tue, 8 May 2012 05:56:28 -0700 (PDT)
> > > From: Paul Rickman <ilove2sail at verizon.net>
> > > To: "C320-List at Catalina320.com" <C320-List at Catalina320.com>
> > > Subject: [C320-list] Hot Water Heater/Commissioning
> > > Message-ID:
> > > <1336481788.97753.YahooMailNeo at web84516.mail.ne1.yahoo.com>
> > > Content-Type: text/plain; charset=iso-8859-1
> > >
> > > All,
> > > ?
> > > Last week when getting ready to launch I filled the water
> > > tanks, purged the air from the system and used water
> > > for several days.?I was getting ready to start cleaning
> > > the inside of the boat, flipped on the hot water heater
> > > and was having a snack, waiting on the water to heat.
> > > I guess after an hour or so, I heard this mini explosion
> > > and water started flowing from under the sink. My
> > > water heater had failed. Defender lists the new Seaward
> > > S600 for 250.00, my local marina parts dept wanted
> > > 417.00.? I now have a new heater and I am happily in
> > > the water.
> > > ?
> > > I do not know what made the heater fail. But the heater
> > > does not come with an anode installed, in fact no one
> > > stocks them. Called Seaward, they will ship one out for
> > > 8 bucks.
> > > ?
> > > Paul
> > > Affinity 657
> > > Bay Bridge Marina
> > > Chesapeake Bay, Maryland
> > >
> >
>