I would like to install a new hose bib on the exterior wall of my house, to be accessed on the deck. Currently, there is a hose bib on the lower level (underneath the deck) straight down from where I would like to put this new one. Is there a risk of a pipe this length freezing in the winter, if it is in the middle of the insulated exterior wall? Should I use extra pipe insulation to prevent it from freezing, or with it being in a wall with insulation be enough? I'm in Virginia, so it doesnt get that cold, but it does freeze.
Plumbing – run a copper pipe for water in an exterior wall without it freezing in the winter
exteriorplumbing
Related Solutions
The link describes a yard hydrant or a barn hydrant. It is similar to a frost proof sillcock. The installation requires that you bury your supply line to 4 feet. The plus is you can put it any where in your yard.
I agree with the comment in that its surprising the copper pipe would conduct enough heat to freeze the downstream pipe, are you sure there's not a draft or something like that?
Your idea to isolate the pipe seems relatively sound though. You would likely want to use PEX instead of PVC. PEX normally requires a special tool to crimp the connectors, so I would recommend using a SharkBite push-in coupling fitting to connect the PEX to the copper and vise versa as these don't require any special tools to install.
From http://www.sharkbite.com/product/couplings/
SharkBite is the Push-Fit connection system that is really taking hold. It’s the easiest way to join copper, CPVC or PEX pipe in any combination with no soldering, clamps, unions or glue. Just insert the pipe and the stainless steel teeth bite down and grip tight, while a specially formulated O-ring compresses to create a perfect seal.
I don't have any affiliation with SharkBite, they are just a well known brand of push-in fittings. Your local store might have other brands too
Related Topic
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Best Answer
Are you able to turn off the water supply to the lower faucet? And is this what you would normally do in cold weather?
If so, you could turn off the water, open both faucets and the water in the pipe would drain out the lower faucet. You would be in exactly the same position as you were before in terms of freezing.