Donald Hester
Washington State Licensed Home Inspector #647
WSDA#80050
InterNachi Member #NACHI10022401
509-670-9572
Contact Us
Washington State Licensed Home Inspector #647
WSDA#80050
InterNachi Member #NACHI10022401
509-670-9572
Contact Us
Pipe is for plumbing and conduit is for electrical. You do not get to mix the two.
Pipe is for plumbing and conduit is for electrical. You do not get to mix the two.
Besides being all wrong on how to pipe a TPR drain we have a creative use of piping and conduit.
PVC pipe is usually the term for PVC pressure pipe. In small sizes, it is usually white in color. If suitable for potable water, it will be marked with "NSF" which means that it has been tested for potability and approved by the National Sanitation Foundation, headquartered in Ann Arbor, MI. and will have a pressure rating printed on the pipe.
Larger sizes used for main lines may be white or blue, with the blue color signifying the pipe is made to AWWA C-900 standards, a higher pressure rating than SDR or Sched 40 ratings.
Conduit is the term applied to PVC pipe made for electrical wiring containment. It is usually in a gray color and should be approved by Underwriters Laboratories (UL mark) for the intended application. Gray conduit is not rated for pressure pipe applications and may not be suitable for potable water use. Stabilizers and other ingredients used in conduit PVC may be toxic; conduit PVC is not held to the same drinking water standards as NSF marked pipe and should not be used in potable water systems.