What is the Best Way to Patch a Water Tank?

[Bottom Gun]

What’s the best way to patch a hole in a water storage tank? Our creek ran over its banks this year and washed a lot of debris downstream. It looks like a large hunk of driftwood poked a small hole in one of the water storage tanks.View attachment 1

Can anyone offer some advice or recommend a good patch for this?
I was thinking about trying some JB Water Weld or JB Tank Weld to plug this hole. Has anyone used the JB stuff or a similar patch?

Thanks for your help. I appreciate it.

 

[Tenring]

Unsure, Home Depot has the rubberized stuff advertised on tv. A wet patch is going to be a problem with most products.

https://www.homedepot.com/p/FLEX-SEAL-FAMILY-OF-PRODUCTS-Flex-Seal-Liquid-Black-32-Oz-Liquid-Rubber-Sealant-Coating-LFSBLKR32/301711448

 

[Ballistic Therapy]

I think it would depend on how large the tank is.
The larger the tank the more pressure on the patch of course.
I have patched plastic and fiberglass tanks before with no problems.
The only steel tanks I have had to patch were on a well , and I had a steel patch welded over them.
On wells ( legally ) you are supposed to have someone that is certified in welding on wells.
JB Water Weld is supposed to be good stuff.
If I were to use it , I would put the patch on the inside of the tank.

 

[baja]

Looks like a long crack?
Never tried their water products, but I used regular JB Weld to repair a hole in the bottom of the gas tank of an old VW Bug. Ten+ years later sold the Bug and the JB patch was still holding.
That being said, if it is a long crack I would try the JB.

 

[Brlux]

Out of curiosity, can you drain the tank? Do you know how thick the galvanized metal is? I would recommencement soldering or possibly welding.

I hit a rock and put a gash in my car gastank. It was a steel tank and after researching repair options like adhesives it looked like the preferable option was to solder over the gash. I did, it was an incredibly puckering experience. I jacked up one side of the car so that the little remaining gas sloshed to the oposit corner, filled the remaining air volume with exhaust gas from an ATV so that there was no oxygen for ignition. I used one of those big weller soldering guns with the hair pin looking heating element. The repair held for the 5 or so years that I had the car.

 

[xerts1911]

 

[Kingjoey]

I would scrub all the surfaces clean, empty the tank, and use some silver-bearing solder to braze in a patch panel. Staybrite 8 and flux would be my recommendation