How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manfuactured and modular homes
What type water supply and drain (DWV) pipes were commonly used for 1990s residential plumbing?
Friday, July 6, 2018
CPVC surged in popularity in the ‘90s, while PB pipe was taken off the market in the middle of the decade due leakage problems
Copper was still used, but in decline. Acidic water or soil found to cause pitting in some areas.
CPVC (cream-color plastic) became much more popular.
PB (gray plastic) was dogged by lawsuits for leakage damage from homeowner and taken off the market in 1996.
PVC (white plastic) used for water service piping to house (not inside), and other exterior locations.
ABS (black plastic) continued to be used, especially in mobile homes.
PVC (white plastic) was most the common DWV pipe.
See our blog post for What do the ABS, PVC, CPVC, PB, and PEX plumbing pipe names mean? for the chemical composition behind all those acronyms. Also, you might want to read How can I tell what type of plumbing pipe I have? and What is the difference between water pipe and sewage (waste) pipe? and Are plastic pipes (PVC, CPVC, and PEX) safe for drinking water?
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Here’s links to a collection of our other blog posts about PLUMBING PIPES:
Cast Iron Pipe
Orangeburg (bituminous fiber) Pipe
PB (Polybutylene) Pipe
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