Construct copper tubing assembly, using solder joints.

Construction should include

• cleaning the pipe, using sandpaper or wire brush
• applying flux with a brush
• applying heat for the solder
• applying the solder
• testing assembly for leaks
• wiping excessive flux after assembly cools.

IRC: Chapters 25, 26, and 27 Links to an external site. cover general plumbing requirements, fixture installation, workmanship, piping support, inspections, and testing. Chapter 29 covers water supply and distribution.

Process/Skill Questions:

• What scientific principle allows molten solder to flow into a joint?
• What material must be absent from solder used in domestic water systems?
• Why is flux so important in soldering?