Freeze Protection for an Outdoor Faucet
I am one of many in Central Texas that had their pipes burst in the recent freeze. The outdoor faucet located in a unheated garage wall froze and ruptured. I had thought I had the situation under control after residing my house and upgrading sheathing to r-3 zip and insulating all walls (including garage walls), however forgot about the original construction that left a small section of water pipe outside of the slab foundation (see photo).
I’m looking into how to try to ensure this doesn’t happen again, and looking for advice. When we finally repair the faucet I will install a 4″ frost-free faucet with PEX connections, but the freezing is happening on the outside of the wall in the slab. My plumber suggested possibly jackhammering out the slab and trying to tuck the tubing back into the slab, but I’m really nervous about this as the tubing is already compromised and trying to work with tubing that’s over 40 years old scares me. My second thought is to install a 2″ or so veneer stone over the slab that would tie into a wash slab under the faucet. This would provide direct protection for the tubing and probably keep from freezing. Other ideas welcome.
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