1. The average person replaces their plumbing every 30-40 years
2. Replacing your plumbing can be expensive, but it might not be necessary if you’re careful about what you put down the drain and how often you use hot water
3. Every time there’s a big storm or heavy rain, check your drains to make sure they don’t get clogged up with dirt and other material that could cause potential problems over time
4. If you live in an area where flooding is common, it may be worth replacing your pipes more frequently than once every 40 years due to corrosion caused by saltwater
5. Consider hiring a professional plumber for all of the work involved in replacing old pipes so that everything goes smoothly without any surprises along the way
6. There are many ways to find out when it’s time to replace your plumbing – one option is asking yourself these questions: “Do I have enough space around my sinks?”, “Are my toilets running slowly?”, “Are there any leaks?”