Garn Leaking water again.

hedge wood

Burning Hunk
Mar 1, 2009
175
Eastern NE
How about welding it on the outside temperaly till summer comes and you can decide on fixing it on the inside or replace with an alternate heating source/boiler.It might not be the prettiest weld to get the leak fixed on the outside,but you would be able to finish off the season with piece of mind that a patch isn't going to fall off.
If we get to the point of draining it down we may try welding it on the outside but the blower unit is pretty close to were its leaking. I am a little concerned without knowing what's going on inside, if welding is a good idea might end up with a big hole and no way to get back running till spring other than completely draining and going inside and seeing if it can be patched. I would really like to get to April before I drain it completely .
 

brenndatomu

Minister of Fire
Aug 21, 2013
6,015
NE Ohio
I would think, and this is obviously without being there, or even seeing the area you are working with, but I would think you could take a piece of thin sheet metal (28-30 GA, like ductwork metal) and cut/form it to fit the area, then if the leak can be more or less stopped using some putty, (JB Water Weld?) a generous application of HT silicone to the whole piece of metal, and to the area it will cover, would make for a durable patch until spring...could be held in place with strong magnets until silicone cures.
Kind of like a redneck version of this tank repair...
 
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hedge wood

Burning Hunk
Mar 1, 2009
175
Eastern NE
I might try some sheet metal next time. The problem last night when the last patch came off and water was pouring out water temp was about 170 and the exhaust was running about 500 so things got interesting real quick. The heat of the exhaust is the real issue with getting things to last. Last patch made it almost two months so not bad.
 

hedge wood

Burning Hunk
Mar 1, 2009
175
Eastern NE
Have a pic of the area where you are doing this temporary patching?
I don't I give up my high tech phone three years ago when I took my early retirement from my town job to come home to farm. Some days I miss it most I don't. Probably need to buy a cheap camera so I could post some.
 

chew72

Member
Oct 27, 2009
60
NS, Canada
I'll preface this by saying I am not a welder. But if the water level was drained down, and this is a pinhole leak, or perhaps a crack. Could you Tig over the existing weld only adding a little filler rod if needed?
Again I'm not a welder but with the existing crack, moisture / corrosion may cause issues with contaminating the weld. I'd be curious if anyone has some thoughts on this.
 

hedge wood

Burning Hunk
Mar 1, 2009
175
Eastern NE
It sounds like a shop vac on the tank, a set of die grinder bits and a few welding rods bent to reach the hole would have this semi-permanently sorted out in an hour rather than messing with patches.
These Garns have a very large man way so getting a shop vac to help would be a problem. Need to drain it below the leak to try to weld it from the outside.

I'll preface this by saying I am not a welder. But if the water level was drained down, and this is a pinhole leak, or perhaps a crack. Could you Tig over the existing weld only adding a little filler rod if needed?
Again I'm not a welder but with the existing crack, moisture / corrosion may cause issues with contaminating the weld. I'd be curious if anyone has some thoughts on this.
If it wasn't sub zero temps I would drain it down past the leak and try to weld it from the outside for a temp fix and then drain it all the way in the spring and see if it can be welded from the inside were the factory weld has probably failed. The only reason I am using silicone is to try to keep it running until this weather breaks and warms back up some.
 

moresnow

Minister of Fire
Jan 13, 2015
1,664
Iowa
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hedge wood

Burning Hunk
Mar 1, 2009
175
Eastern NE
Take a look at this. I have a buddy who swears by it. Sticks well to about anything. Read the description of its thermal expansion and temp capabilities. I believe it can be purchased at any auto parts joint. I know NAPA has it. Possibility?

Loctite 40480 Ready Gasket - Gasket Maker 190mL Aerosol Can [LOC-40480] : Gasketing - $18.36 EMI Supply, Inc
That is some good product. Used some of that years ago on plastic valve covers and plastic oil pans. Kind forgot about it.
 

shawntitan

Member
Dec 7, 2007
73
NJ
Way north of ten grand. Eleven years ago I put $30,000 in system to get it up and running. Spray foaming was the only thing I hired done. Two years ago when it leaked the first time I called them and there office jockey said the owner will call me it took three weeks for him to call me back. I got no help from him. They wouldn't even giving me a discount on any parts I needed from them like gaskets. Last time it leaked it took three months from shut down to back up and running. Took a lot of time to clean it and find and schedule a welder to do the work. Most welders I called wouldn't even come look at it. By the time I got back up and running I spent $3,000 on the repairs. That didn't include the propane I had to buy to get my by. The cost of ownership has been quiet high. For a piece of equipment that's suppose to last 25-30 years I am not doing so well. I hope I can limp it along until spring don't want to have to buy $1,000 dollars of propane to get to spring when the wood is already put up.
This is heartbreaking news... A Garn was always my dream set up. So sorry about what you’re going through.
 

salecker

Minister of Fire
Aug 22, 2010
1,309
Northern Canada
These Garns have a very large man way so getting a shop vac to help would be a problem. Need to drain it below the leak to try to weld it from the outside.
A good welder wouldn't need it drained,i watched a guy weld up a leaking water tank on a semi while it was full and leaking,fixed a few cracks with leaks that day. It was my Dad. He was a welder for years in the shipyards in Seattle in the 60's
 

SpaceBus

Minister of Fire
Nov 18, 2018
5,375
Downeast Maine
It would probably be more expensive to pay an underwater welder to fix it. Also probably short on underwater welders in NE.
 

brenndatomu

Minister of Fire
Aug 21, 2013
6,015
NE Ohio
I don't think anybody is going inside this thing to fix it while it's still full...
 

hedge wood

Burning Hunk
Mar 1, 2009
175
Eastern NE
It would probably be more expensive to pay an underwater welder to fix it. Also probably short on underwater welders in NE.
[/QUOTE
Not many under water welders in NE. Years ago I took some college courses with a guy that said he was a under water welder. I didn't ever see his paper work.
I don't think anybody is going inside this thing to fix it while it's still full...
I had a hard enough time two years ago with the last leak just to find a welder that would come out to the farm and work inside the Garn
with it empty and clean.Their's so much work in the city for the trades no one has to come to the country to work.
 
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salecker

Minister of Fire
Aug 22, 2010
1,309
Northern Canada
It would probably be more expensive to pay an underwater welder to fix it. Also probably short on underwater welders in NE.
He was on the outside of the tank,no underwater requirements.