Possibly, but the hope is that when it's cold enough that the valve fully opens the water will come out fast enough to prevent that. But I guess we'll find out tonight and tomorrow.

Oh... we are at 14 with a real fee of -2 real feel currently here in Prosper

I covered my hose bibs with the styrofoam covers Thursday morning then went back yesterday and wrapped the covered with towels and then plastic bags so the towels won't get saturated with the moisture coming tomorrow.

For outside nozzles I did 4 old socks then a grocery bag duct taped outside that, then two old rags, then another grocery bad duct taped around that. I figure that will let the little bit of heat dialing through the wall keep it at least at wall temperature, which would be above freezing with the house in the low 60's.

That sounds miserable. I'm in Houston and we are at 34 and just starting to slide down a little. Supposed to touch teens tonight and single digits Monday night. So I'll get a real test on these things then. So far they seem to be responding to the cold how they are supposed to but no real stress test yet.

ReloadAg said:

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I covered my hose bibs with the styrofoam covers Thursday morning then went back yesterday and wrapped the covered with towels and then plastic bags so the towels won't get saturated with the moisture coming tomorrow.

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That's exactly what I've done.

ATXAdvisor said:

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This hose bib has burst the last two times we've gone < 20 in Austin. Have tried dripping and wrapping...hoping this bright idea works.

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Hope it works for you! Is that one on a north facing wall?

What was the result of it bursting? Did water only spray outside, or did it get inside your house?

East facing, the bib itself cracked both times. My foundation is @ 40 ft tall on that side of the house and the plumbing is in the slab,

ATXAdvisor said:

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East facing, the bib itself cracked both times. My foundation is @ 40 ft tall on that side of the house and the plumbing is in the slab,

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So if just the bib cracks, can you get water in your house?

I couldn't get water in the house from that one but I have to shut off water in the whole house while waiting for the plumber to come fix. Wife gets antsy when she can't shower.

It also has a junction that connects to my pool and outdoor kitchen which is a bit beyond my skill set.

I forgot to mention this and it might've already been mentioned, but it's a good idea to fill up a tub with potable water just in case of pipe burst or loss of water pressure due to blackout. Good luck everyone.

One of our exterior hose bibs is on a west facing wall. I've wrapped it in socks and put a styrofoam cover over it. I've checked it twice a day and it hasn't frozen. The other one comes out of the garage on a north-facing wall and the exterior wall is limestone veneer that isn't flush (thank you ****ty home builders). It's been frozen at the bib every time I've checked it. I'm dripping it tonight and praying.

For those who were interested in a report on how these freeze miser things worked out here is my report.

TLDR version: They work as advertised.

Longer version: they work to prevent the hose bibs from freezing but there are a few things that need to be done to increase the chance of success. First, they need to be tested. From what I've read on the reviews some have had them not function so I put them all in the freezer for an hour to fully open the valves and then put them on the hose bibs, got the flow turned up where I wanted it and watched them close the flow down over about 2 minutes. Did this all well prior to freezing. The second lesson I learned is you need to make sure the faucet isn't dripping/leaking anywhere. The two I had with no leaks or drips functioned perfect (got down to the low teens). The third hose bib had a light drip and I wound up with this:

Turns out the key to success is making sure that when it flows, it flows hard enough that nothing freezes on the outlet itself. The slow external drip I had slowly built up ice on the third one all night. To its credit though the thing still seemed to work as all the ice was on the outside and the bib wasn't frozen internally. But I don't know if that would have held true a second night.