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Common Plumbing Concerns

Plumbing with dissimilar metals?

Many homes have issues with electrolysis and corrosion caused by piping with dissimilar metals such as copper to steel, galvanized to brass, etc. Dissimilar metals cause corrosion which can cause leaks. (as seen in the pictures of galvanized to brass)

Electrolysis Dissimilar Metals
Dissimilar Metals Erosion

Polybutylene

Polybutylene is a form of plastic resin that was used extensively in the manufacture of water supply piping from 1978 until 1995. Manufacturing of Polybutylene piping was ceased on or around 1995 due to high failure rate. On average it takes Polybutylene piping 10-15 years to show signs of severe deterioration. When it fails it does so without warning. Although this can still be found in some homes this piping can no longer be purchased. 

Polybutlene Pipe
CPVC Pipe

CPVC Pipe (chlorinated polyvinyl chloride)

Putting it quick and simple… Don’t consider it!  CPVC is known to split, crack, and become very brittle over time. They do not withstand the freeze of the NY winters. As the water freezes the water will expand which is almost a guaranteed pipe burst.

Copper 

Copper tubing has been ideal for plumbing for many years. Generally speaking, copper has been known to resist corrosion, however, if your water is acidic the copper can corrode. If you are considering copper keep in mind the climate. Copper pipes have been known to burst when the water freezes.

copper plumbing
PEX Pipe Tubing

PEX Tubing (polyethylene cross-linked tubing)

PEX is Scott’s Plumbing pipe of choice. It doesn’t corrode or develop pinhole leaks, is chlorine-resistant, scale-resistant, and has fewer fittings, connections, and elbows than rigid plastic and metal pipe.

Copper vs. PEX

  • PEX is less expensive than copper.

  • Copper is more labor intensive than PEX to install and requires a skilled plumber.

  • If you have acidic water, over time copper will corrode and you will be dealing with leaks.

PEX vs. CPVC

  • PEX doesn’t require glue, which means you don’t have to work in well-ventilated spaces or wear a respirator.

  • PEX is less likely than CPVC to burst if it freezes.

  • PEX is more flexible and is available in long lengths, therefore it can be easier to work with when running through walls in remodeling situations.

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