Rigid copper is used for main water lines in many homes. You cannot bend rigid copper, so joints and tees must be soldered on. When soldering, always apply flux (also called soldering paste) to both surfaces. Flux retards oxidation when the copper is heated. Always use lead-free or nearly lead-free solder when sweating a copper joint.

You…[Read more]

You always want to solder correctly, the biggest mistake most people make when soldering is failing to get the interior of the fitting and the exterior of the pipe clean and shiny. Polish these surfaces with a fine emery clot until bright. When soldering, never heat the pipe, but instead heat the fitting. Doing so allows the solder to be drawn…[Read more]