Brass supply pipes can last between 40 to 70+ years. Copper pipes can last in excess of 50 years, and galvanized steel pipes can last between 20 and 50 years. Cast iron drain lines have a lifespan of 75 to 100 years, and PVC drain lines will last indefinitely.Click to see full answer. Also to know is, how long do copper pipes last?Copper pipes typically last 20–50 years, so if your plumbing system is older than 20 years, it’s generally not worth trying to save your pipes—especially if you already have pinhole leaks. You see, as copper ages, the inner linings of the pipe become weaker, which makes them more prone to pinhole leaks. how do you protect copper pipes underground? Sleeving / Wrapping. In most cases, the best option for installing copper underground is to bury it in direct contact with the soil. Copper is naturally corrosion resistant to most soils and underground environments. One may also ask, does copper pipe corrode underground? Copper water tubing has an outstanding history of corrosion resistance in most underground environments. Copper does not naturally corrode in most clays, chalks, loams, sands, and gravels. Certain aggressive soil conditions, however, can cause it to corrode. Copper is also subject to corrosion by stray DC electricity.How do you stop copper pipes from corroding?Ideally, a thin film of lime will form on the inside of the pipe to protect the copper from corrosion. But if there is too much calcium carbonate in the water, copper pipes can also become clogged with lime over time.
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