Here's a complete guide on how to repair a leaking joint whether it wasn't soldered correctly or it just started leaking in time, this guide will assist you in repairing it the CORRECT way, not the quick-fix way :) Join my plumbing forum for FREE! https://got2learn.freeforums.net/ How to solder the correct way: https://youtu.be/JyVbjDsric4 How to solder in a wall: https://youtu.be/xJodDBC5AwY How to solder with water in pipe: https://youtu.be/lNUAX6mJTlA Amazon affiliate links to all the products I used in this video: TOOLS: Bernzomatic Torch: https://amzn.to/3s4uF3e IRWIN 10" Locking Pliers: https://amzn.to/2SuJSY3 Fitting brush 4 in 1: https://amzn.to/45ELin6 Flux brushes: https://amzn.to/3S1xsrK Utility knife: https://amzn.to/4lgF6KG Pencil reamer: https://amzn.to/2tBuhKW Fire proof blanket: https://amzn.to/3RzlkfU MATERIALS: Low temp lead-free solder: https://amzn.to/4jjpWms Propane gas (yellow bottle): https://amzn.to/4ciYgMa Lead-free flux (water-soluble): https://amzn.to/3Ee4P5S 150 Grit Sandpaper: https://amzn.to/2YbJq6D DISCLAIMER: Got2Learn is NOT responsible for any damage done to a property of which the plumbing wasn't done by a professional, I do not recommend doing your own plumbing if you are unsure about what you are doing, always hire a LICENSED contractor when doing any type of plumbing so you can be covered by insurances if something does happen, these videos are for entertainment purposes only!