A mild winter can still split a hose bib

San Antonio does not have a Minnesota winter. It has a handful of nights that people treat as a joke until a hose bib splits and a ceiling stains. Mild winters still stress pipes because the city is built for heat. Attic runs, outdoor showers, and uninsulated bibs are normal until they are not.

The rare hard freeze is when news stations talk about dripping faucets. Dripping can help a vulnerable run. It does not help a hose that is still attached and full. Disconnect hoses. Insulate bibs. Know which valve kills the outdoor circuit if you have one.

Attic heaters and attic PEX see the widest temperature swing. A unit that was fine in September can show a leak at a union after the first 35-degree night. Look in the pan. A wet pan is a message. A dry pan and a wet ceiling is a different message.

Slab lines do not freeze often. They do see pressure changes and extra indoor use when everyone showers hot after a cold morning. That load shows up as heater noise and, sometimes, as a leak that was already waiting. See hard water and heaters.

Well houses and pump sheds in Helotes and Leon Springs are the first places to split. A $4 foam cover is less romantic than a Hill Country sunrise and more useful in January.

If a line splits, the script is the same as any burst: shutoff, power, photos, request. Use burst pipe at night for the order of operations and emergency plumber if water is moving.

Do not run a heater that is dry because a freeze leak emptied the tank. You will buy two repairs. Kill power or gas until the system is full again.

City freeze guidance, when they issue it, lives on sanantonio.gov. Park and landmark pages such as Missions NHP are not plumbing manuals; they are how we place neighborhoods in other articles.

We will not invent a “polar vortex package” or a coupon. We will not post fake winter reviews. The work is valves, insulation, and honest ETAs when the whole metro calls at once.

Prep in November even if October felt like summer. The people who wait for the first warning crawl are the people looking for foam covers at 10 p.m. in a sold-out aisle.

Outdoor showers and uninsulated hose bibs on south-facing walls still split. Sun does not make them freeze-proof. Disconnect the hose. A full hose is a closed system that pushes ice toward the bib.

Well houses in Helotes and Leon Springs deserve a look before the first warning. A $4 foam cover is not rustic. It is cheaper than a split nipple and a dead pump. Leave a note on the tank so the next person does not strip the cover and forget to put it back.

If a freeze leak empties a heater, do not energize a dry tank. Fill, purge air, then restore power or gas. Two repairs is a miserable souvenir of a two-night cold snap that the rest of the country would not even call winter.

Attic PEX that was stapled tight to a drafty deck will tell on itself after a 35-degree night. Look in the pan. Look at unions. A wet attic in January is not automatically a slab leak. It is often an attic leak that wants a simple fitting and a dry heater.

City freeze guidance, when issued, is worth a read even if you have lived here twenty years. The last hard freeze is always “the one we forgot.” Official notes live on sanantonio.gov. Foam covers live at the hardware store in November, not during the warning crawl.

Mild winters still win when people treat them as a joke. A hose left on a bib is a closed ice maker. Disconnect it in November. The two-night snap does not care that you have lived here long enough to remember a hotter February.

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