- Hot water heater: 7-15 years
- Well pump: 10-12 years
- Septic pump: 5-10 years
- Sump pumps: 4-7 years
- Polypropylene pipe: 12-15 years
- Polypropylene water main: 10-12 years
- Cast iron piping: 35-45 years
- Galvanized piping: 20-30 years
Note: These are averages and should only be used as a guide when making decisions.