Piedmont Association of Home Inspectors

Plumbing Information

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Below is information on some commonly asked questions about residential plumbing.
With the modernization of plastic plumbing piping (PEX, PVC, CPVC) many people wonder why a home inspector recommends a licensed plumber  fix a plumbing related problem.  The answer is simple, if the problem is not fixed correctly it can lead to leaks, sewage problems, mold and possibly an explosive condition. 
The links below will show you what can happen when a water heater has a blocked T&P valve.

Code Requirements on Thermal Expansion Control-by Dennis Streit

Water Heater Blast Video

Article-four hurt as water heater explodes

Dishwasher drain lines are often not properly installed.  A back up at the kitchen sink drain line can flood the dishwasher and thew kitchen if the drain line is not properly installed.  Clicking on a link below will open up a GE dishwasher installation maunual.

Dishwasher Drain Line Installation Manual

Polybutylene Plumbing was commonly installed in the Greater Piedmont area throughout the 1980's through the mid 1990's.  It was involved in a class action law suit. 
poly-w-plastic-fittings.jpg
polybutylene with plastic fittings
"Polybutylene plastic plumbing supply lines (PB) are installed in the subject house. Polybutylene has been used in this area for many years, but has had a higher than normal failure rate, and is no longer being widely used. Copper and Brass fittings used in later years have apparently reduced the failure rate. This subject house has plastic fittings. For further details contact the Consumer Plumbing Recovery center at 1-800-392-7591 or the web at http://www.pbpipe.com" - North Carolina Home Inspectors Licensure Board  

Click here to be directed to the class action law suit for Polybutylene piping

 The EPA on lead solder used with copper pipes:

"(This practice [of using lead solder with copper pipes] ended only recently in some localities.) Plumbing installed before 1930 is most likely to contain lead. Copper pipes have replaced lead pipes in most residential plumbing. However, the use of lead solder with copper pipes is widespread.  Experts regard this lead solder as the major cause of lead      contamination of household water in U.S. homes today."  From U.S. EPA Actions You Can Take To Reduce Lead in Drinking Water.

PAHI Members: 

2004 Piedmont Association of Home Inspectors / PAHI 
The PAHI website was built as a refrence tool, free information source, and to be one central web site where homebuyers, home sellers, and realtors can obtain answers to almost all questions they may have regarding home inspections.  In order to accomplish this task most of this information is gathered from other web sites and sources including, but not limited to: EPA, CPSC, HUD, NRSB, ALA, IAQA, Code Check, Mike Holt, Inspect-NY (Daniel Frediman), ASHI, etc.  The Piedmont Association of Home Inspectors and its members have not authored any of the opinions on this web site.  Users of this web site agree to hold The Piedmont Association of Home Inspectors and its members harmless and realase all liability for any inforamtion contained on www.pahi.org or any site that www.pahi.org links to including but not limited to: www.inspectorpaul.com www.sherlockcarolinas.com www.arrowhomeinspectionservice.com www.carolina-homepro.com www.schomeinspections.com www.a-prohome.com www.aohomeinspection.com/ www.betterhomeinspection.net www.downunderinspections.com