Leak in solar hot water panel

[evad]

I have a solar water heating panel which developed a leak when it froze. The leak is small and at a solder joint. I can solder it but it will be difficult. Has anyone one had good results with a epoxy or other coating. The water pressure is about 75 lbs. Any information will be appreciated.

 

[Groscout]

I would give it a shot. If you can pull it apart, sand it clean then flux and solder, do it. If the solder doesn’t take right away try 50/50 lead solder, it’s much easier to solder with. I would try soldering before epoxy etc.

 

[Solar Guppy]

You have to solder it and even then since it froze more than likely it is toast, been through this and never will use thermal solar again.