Question

What is a plan that shows hot and cold water pipes, waste lines, and vents.

Answer 1

They normally have a blue c and a red h to show the different temperatures

Answer 2

“In most cases, the hot water is on the left and the cold water is on the right. Regardless of the style of faucet, hooking up the hot and cold water lines is relatively easy. Supply lines with integral washers are available at most home centers.”