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    jrsms's Avatar
    jrsms Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Nov 17, 2010, 11:11 AM
    Different types of drainage pipe
    I notice my neighbor is adding a light blue plastic pipe at the foot of his retaining walls. Is this different than regular PVC drainage pipe?
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #2

    Nov 17, 2010, 03:53 PM

    Could you be speaking of a blue SDR 35 pipe.. see image?

    If so, this is an exterior drainage pipe used by many municipalities to run sewer/drain pipes to within 10 feet of a building... has an increased flexibilty (not so brittle) and has a gasketed seal which allows for expansion/contraction/ground movement... ;)

    Closer than 10 feet to the building and the sewer/drains belong to the plumber and he transitions from the SDR 35 pipe to regular PVC and brings it into the home nowadays... ;)

    Questions? Let me know...

    Mark
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