On Thursday, October 20, 2016 at 12:49:47 PM UTC-4, Boris wrote:
(Scott Lurndal) wrote in news:13vNz.37901$1k2.17906
@fx38.iad:

Boris writes:
Hi,

The home is in the Sacramento, CA area. It sometimes gets down to 28-30
degrees F in the winter months.

Generally only for a couple of hours before it warms back up. It's
probably not enough to worry about, although the black foam is probably
your best bet.

You're probably right. The home was my dad's, and I don't remember him
ever wraping pipe in the 30 years he owned the home. He passed away three
years ago, and now I have the home.

My concern is that because it's not my primary home, and I live about 2
hours away and only go up there once a month or so, if there were a pipe
burst, I wouldn't know, and a neighbor may not see it, depending on where
the burst was.

Whenever I'm away for an extended period, I shut off the main water
valve as a precaution. If you have a hot water heater and no expansion
tank, leave a faucet open.