Its been a hard winter on plumbing, and I had some freezing pipes when I lost power for a few days and it was in the teens. The water was shut off but didn't drain the pipes. I had a pipe burst and a pex manifold burst too, and after getting all those hooked up there was a drip coming from the tankless water heater. I was able to get a picture of it, and wondering about fixing it. I was thinking I'd try cleaning it up, flux it and reflow some solder. I'm looking for advice on that or any other approaches or products.
