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You can often identify a freeze-proof faucet by its structure. Unlike a traditional spigot, a freeze-proof one will include a long supply pipe that extends into your home and connects several inches back to your water supply. Many freeze-proof models also have an extra valve on top of the exterior of the spigot, which is the anti-siphon feature that protects against water backflow.

PVC is best for drain or waste lines, but it isn’t a great choice for water supply lines, which tend to be highly pressurized. PVC is also not suitable for hot water lines. Instead, you’ll commonly see PVC for a toilet drain line or for plumbing vents to prevent airlocks, which can prevent water from flowing out of faucets.

In general, PVC (polyvinyl chloride), PEX (polyethylene), and copper are the three piping materials used in new constructions when adding water supply lines. There are some caveats. PEX and copper are considered ideal when running lines that will handle hot water because they are not at risk for melting and warping the way that PVC piping can. At $0.40 to $4 per linear foot, PEX is considered more affordable than copper pipes, which cost $2 to $12 per linear foot. PVC is considered appropriate in water lines for cold taps only.

While you don’t have to run out and immediately buy a new toilet at the first sign of a clog, if the toilet keeps clogging because it’s a low-flow or poorly designed model, a new toilet may be the way to go. If your toilet keeps clogging, you can try using less toilet paper, adjusting the fill valve, checking the toilet vent pipe on the roof, and using a toilet auger to make sure nothing is stuck in the pipe or trap.