1. Cold Water Lines Exposed to Warm Environments. It’s not uncommon for homes to have plumbing running through uninsulated spaces, like attics.

The difficulty usually lies in routing the new water line and making the plumbing connections. The steps below cover three methods of connecting your fridge to the home’s water supply. 1.

I still draw 3D riser diagrams for homeowners and builders. The drawings allow them to obtain plumbing permits, ... to supply a luxury shower with 1/2-inch diameter PEX hot and cold water lines.