Finish the following sentence with the best choice: What should I do once the copper pipe solder has cooled down when working on a plumbing project?

Choices:
- grab a rag and wipe the excess flux off as good measure and test your joints by turning the water back off.
- grab a rag and wipe the excess flux off as good measure and test your joints by turning the water back on.

Answer:
grab a rag and wipe the excess flux off as good measure and test your joints by turning the water back on.