Supply and Waste Hookup Not Unique to Each Sink
Every time you install a new sink, you’ll need to hook up supply lines to the faucet and the waste line to the trap. As a general rule, it’s easiest to hook up the supply lines first, since the waste line will block access to the supply lines. Typically, you’ll connect the hot and cold shut-off valves to the hot and cold valves of the faucet.
These connections are usually made with flexible supply lines – either chromed copper or braided or plastic flexible lines with captive nuts.
- Since it’s difficult to install flexible supply lines to a faucet once the sink is in place, it’s best to attach these to the faucet valves when you have full access to the faucet. Start by wrapping a few turns of Teflon™ tape around the threads of the hot and cold valves.
- Now you can thread the faucet end on each of the flexible supply lines onto the hot and cold valves and tighten them with an adjustable wrench.
- Next, wrap the threads of the shut-off valve with Teflon™ tape found at your local plumbing supply store.
- Thread on and tighten the nuts with an adjustable wrench.
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