Replace Bathroom Water Supply Lines Without Leaks One of the biggest problems when swapping out water supply lines is knowing how tight the connections should be. Obviously this is important to prevent water leaks. Most directions say to hand tighten then use a wrench for the last 1/4 to 1/2 turn.

How tight should a water supply line be?

Hand Tight is Right. In fact, pipes should only be hand tight to help aid the flow of water throughout your home. The unique construction and configuration of pipes means they are made to be tightened just enough; making them super tight can actually prevent water from flowing properly.

How do you tighten a faucet supply line?

Thread the metal nut onto the shutoff valve and tighten (1/2) turns beyond hand-tight. Prior to threading plastic nut onto fill valve shank, turn Click Seal nut counter-clockwise until threads align. Gently turn Click Seal nut clockwise and hand tighten until nut clicks. The “click” lets you know its sealed!

Can toilet supply lines be reused?

Re: Re-use old supply lines? Probably, NO, to replacing all the lines, UNLESS the rubber nose pieces come off when you detach it from the faucet. The dishwasher does not have this possible problem.

What did plumbers use before Teflon tape?

Pipe Dope. Pipe dope, also referred to as pipe joint sealant/compound, is a form of liquid used in sealing threads just like tape. The container comes with a cap that has a swab brush attached to it. The brush is used for applying pipe dope on pipe threads before attaching the fitting.