[C320-list] Hot water tank woes

[oldman1030 at hotmail.com]

When I checked under the galley sink it was soaked under there.  It was 
definitely the hot water tank spewing the water out.

----- Original Message -----
From: "Bill Culbertson" <billculb_a2 at yahoo.com>
To: "C320-List" <c320-list at catalina320.com>; "c320" 
<C320-List at catalina320.com>
Sent: Thursday, July 05, 2007 5:35 PM
Subject: Re: [C320-list] Hot water tank woes

> This is a long shot but is it possible that you shutoff the shower using 
> the shower head push button and forgot to shut off the water directly at 
> the sink faucet?  When I do this, I get the exact same pump every 30 
> seconds that you describe.  It happens because the showerhead button 
> shutoff is not a perfect shutoff and leaks some.  When I shut off at the 
> sink faucet hot/cold knobs, the cycling stops.
>
> This seems like the most likely explanation for your symptoms to me.
>
> You can confirm/check if overflow from heater is the issue by putting a 
> cup under the overflow tube to catch the overflow.  On my boat, it will 
> fill over 10-15 minutes after I 1st heat the water (AC or Engine) but then 
> it stops after that.  I empty the cup periodically until it stays empty.
>
> -bill
>
>
> ----- Original Message ----
> From: Chris Holt <oldman1030 at hotmail.com>
> To: c320 <C320-List at catalina320.com>
> Sent: Thursday, July 5, 2007 4:31:50 PM
> Subject: [C320-list] Hot water tank woes
>
>
> I just came back from a 4 day vacation on the boat and we had a bit of 
> trouble with the hot water tank.  With 4 girls (wife and three kids) hot 
> water is a must.
> There were a couple of strange things that happened but to save on typing 
> and you reading I'll talk about the main one.  On the third day we were on 
> a dock in Kennebunkport, ME and we turned on the AC water heater.  After 
> taking showers we forgot to shut it off and went for a walk in town.  When 
> I got back I could hear the water pump running and figured we must have 
> run out of water and I didn't hear it before leaving.  When I flipped the 
> tank over the system pressurized and then the pump would kick on about 
> every 30 seconds for a short burst.  After thinking about this I 
> remembered we didn't shut off the water heater.  When I checked under the 
> sink it was very hot under there and sure enough there was water in there.
>
> First question:  Isn't there a thermostat in there that should not allow 
> the water to get that hot?
>
> In any case, I'm assuming the water was too hot and the pressure relief 
> valve keep shooting out water to let off steam.
> So I ran the hot water for awhile to cool the water down in the tank and 
> sure enough the water pump stopped kicking on.
> Now, when we left Kennebunkport and got to our destination I heard the 
> water pump doing the same thing.  The engine now caused the water to get 
> too hot.
>
> 2nd question: If the answer to the first question is yes does the 
> thermostat work for engine heating and AC heating?
> 3rd question: Because of this incident do you think my pressure release 
> valve is no longer good?  It seemed I had to cool the water down quite a 
> lot in the tank before it stopped causing the pump to turn on.
>
> Thanks,
>
> Chris
> #447
>
>
>
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