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Author Topic: Water Heater Leak  (Read 3476 times)

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Brad Young

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Water Heater Leak
« on: April 25, 2017, 10:31:26 AM »

I have a major water heater leak.
With waterpressure turned on, water flows out the drain hose.
 This hose is located on the pressure relieve value.
It flows at the normal rate that would normally come out of the faucet.
At the faucet it just sputters.
 
Do you think the pressure relief is bad, the whole water heater or something else?

At least the water in the bilge is nice and warm
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Brad Young
Boat
Year 1986
Model C34
Hull# 84

Noah

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Re: Water Heater Leak
« Reply #1 on: April 25, 2017, 10:35:27 AM »

Start by changing out pressure valve and see.
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1990 hull #1014, San Diego, CA,  Fin Keel,
Standard Rig

KWKloeber

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Re: Water Heater Leak
« Reply #2 on: April 25, 2017, 11:06:33 AM »

 If the water heater went to bed ( a leak in either side, of the coil), it see no reason that it would cause the relief  valve to pass water. It's strange that it's not simply dripping, but rather a large leak. As Noah said start with that. Just to  ask the obvious question, the relief valve lever isn't open by any chance?
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Twenty years from now you'll be more disappointed by the things you didn't do, than by the ones you did.
So throw off the bowlines.  Sail away from the safe harbor.  Catch the tradewinds in your sails.
Explore.  Dream.  Discover.   -Mark Twain

Dave Spencer

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Re: Water Heater Leak
« Reply #3 on: April 25, 2017, 11:12:21 AM »

Hi Brad,
Are you using the pressure relief valve as a drain valve; say to drain your tank for winter storage?  If so, the pressure relief valve is almost certainly the problem since presumably, you can't build any water pressure with either hot or cold water at the faucets.  If you are heating the tank electrically, I would strongly recommend turning the power off until you are able to fill the hot water tank without it leaking into the bilge. 
It sounds like your boat is different than mine which is not a surprise.  I have a separate drain valve and pressure relief valve.  Here's a picture of my hot water tank under the galley sink.  Pressure relief is on the right and the drain valve is on the left.  If I leave the drain valve open and operate the house water pump, water flows out the drain valve at the max rate the pump can produce and I'll get no pressure at any of the other faucets in the boat. 
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Dave Spencer
C34 #1279  "Good Idea"
Mk 1.5, Std Rig, Wing Keel, M35A Engine
Boat - Lion's Head, Ontario
People - London, Ontario

Noah

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Re: Water Heater Leak
« Reply #4 on: April 25, 2017, 12:13:30 PM »

And mine:
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1990 hull #1014, San Diego, CA,  Fin Keel,
Standard Rig

Brad Young

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Re: Water Heater Leak
« Reply #5 on: April 25, 2017, 01:38:03 PM »

1) I am jealous of both of Noah and Dave. Your  waterheater placement is great! Mine is virtually on the hull, with a thin plywood platform. Therefor all my connections are well below the door. I will have to remove the waterheater to be able to pressure valve. I will probably build a platform once I Get the waterheater out.
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Brad Young
Boat
Year 1986
Model C34
Hull# 84

Ron Hill

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Re: Water Heater Leak
« Reply #6 on: April 25, 2017, 01:56:24 PM »

Brad : If you still have the round hot water heater it is the original that was installed is all 1986 and most 1987 C34s

If so you might want to change to a square HWH on a new higher platform. This will raise the height of the connections.

A thought
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Brad Young

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Re: Water Heater Leak
« Reply #7 on: April 25, 2017, 02:05:02 PM »

This is mine.
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Brad Young
Boat
Year 1986
Model C34
Hull# 84

Ron Hill

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Re: Water Heater Leak
« Reply #8 on: April 25, 2017, 02:12:27 PM »

Brad : Looks like a PO installed a square heater on the plywood pedestal made for that original round heater!!

Guess what!!  Remove your HW heater and build up the pedestal - then reinstall your HW heater !!

A pain, or leave it as is and complain!! 

A few thoughts
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Ron, Apache #788

Dave Spencer

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Re: Water Heater Leak
« Reply #9 on: April 25, 2017, 02:15:38 PM »

Ouch!  :shock:  it looks to be well tucked away and difficult to maintain for access.  But just think how much better your boat performs with all that weight down so low!   :D   :roll:
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Dave Spencer
C34 #1279  "Good Idea"
Mk 1.5, Std Rig, Wing Keel, M35A Engine
Boat - Lion's Head, Ontario
People - London, Ontario

Hawk

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Re: Water Heater Leak
« Reply #10 on: September 13, 2017, 08:38:11 PM »

Guys, I just returned from the boat as I was checking why the Shurflo fresh water pump was not cycling off as it normally would once pressure was up. Oh oh a sizable water leak was coming out from the bottom of the water heater at the attachment plate location right in the middle as you look at the tank. My tank is the Seaward S600 6 gal, same as Dave Spencer's photo above. The water does not seem to be dripping down from the pressure relief valve or the drain valve but rather from the bottom??

Any thoughts? Can you get a Seaward replacement? Not that I want that project!

Thanks
Tom
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Tom Hawkins - 1990 Fin Keel - #1094 - M35

Dave Spencer

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Re: Water Heater Leak
« Reply #11 on: September 14, 2017, 08:12:22 AM »

The Seaward S600 (or F600) looks to be readily available.  S600 = rear heat exchanger fittings, F600 = front fittings.

Canadian source: http://ca.binnacle.com/p6299/Seaward-600-Water-Heater-6-Gallon-Galvanized/product_info.html
United States Source:  http://www.defender.com/product.jsp?path=-1%7C51%7C2234308%7C2234311&id=2092235  and http://us.binnacle.com/product_info.php?products_id=6299
« Last Edit: September 14, 2017, 08:14:07 AM by Dave Spencer »
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Dave Spencer
C34 #1279  "Good Idea"
Mk 1.5, Std Rig, Wing Keel, M35A Engine
Boat - Lion's Head, Ontario
People - London, Ontario

Jim Hardesty

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Re: Water Heater Leak
« Reply #12 on: September 14, 2017, 09:58:52 AM »

Quote
Any thoughts?

If you decide to delay replacing the water heater I suggest you bypass and drain it.  That will hopefully save the wood base it sits on and work in the long run.
Jim
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Jim Hardesty
2001 MKII hull #1570 M35BC  "Shamrock"
sailing Lake Erie
from Commodore Perry Yacht Club
Erie, PA

Ron Hill

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Re: Water Heater Leak
« Reply #13 on: September 14, 2017, 12:16:02 PM »

Tom : I'll guess that you have the original water heater.  Just change it out!!
Look at your present heater and get the replacement heater with the connections on the same side as the old one.
You might even change out the hoses from the engine while you are at it.  OR get the new water heater in and then change out the hoses. 

Don't know where you are located, but if it's the end of your sailing season - get the boat hauled and then do the work!!

A few thoughts
« Last Edit: September 14, 2017, 12:18:40 PM by Ron Hill »
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Ron, Apache #788

Hawk

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Re: Water Heater Leak
« Reply #14 on: September 14, 2017, 12:46:41 PM »

Thanks Ron and All, was afraid you would say that.....

I take it there is no issue that the leaking water tank will cause the fresh water pump to continue pumping indefinitely without shutting off??

Also does the water heater come out of the opening without cutting anything? As I said mine is located identical to Dave spencer's photo above. Dave thanks for the link to a Canadian source for a new heater.

Any tips from those who have installed a new heater are most welcomed:)

Tom
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Tom Hawkins - 1990 Fin Keel - #1094 - M35
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