With more than 34,000 CL&P customers still without power Saturday night, many homes without heat were facing the prospect of frozen pipes. Here’s some advice from Roto-Rooter, a plumbing and drain service:

If water freezes in a pipe, the Roto-Rooter website says, it will expand and crack it. Pipes in attics, garages, crawl spaces or outside walls are the most vulnerable.

To prevent a pipe from freezing:

- Fit pipes with insulation sleeves or wrapping

- Let your faucet drip during extreme cold to prevent bursting

If your pipes are already frozen:

- Turn off your water main to prevent flooding

- Research the piping layout structure in your home

- Identify the cracked pipe and replace the broken sections with insulation

- Call a plumber immediately

Source: www.rotorooter.com/plumbing-basics/seasonal-tips/winter