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Post Info TOPIC: ABS vs. PVC


Newbie

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ABS vs. PVC


A friend of mine says roots from nearby trees are growing into the plastic waste pipe under his house. I said that's impossible and asked him what kind of waste pipe. He said PVC. Isn't ABS the usual pipe usd under the ground and it's impossible for roots to penetrate ABS? Not sure abut PVC.



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Administrator

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I suppose it depends on whether the pipe is leaking...and the thickness of it. If its not leaking, the roots will not go near it, but if it is, they will grow toward it and into the leak.

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roots in septic lines are a constant battle down here in East Texas but I really don't believe that they can get into the line "WITHOUT" a hole to enter into - - - - - I sure don't think that roots could break thru the outside of either of those PVC or ABS - - - - However, if it is perferated drain line for a leach field then it can become a root growing paradise if not covered correctly

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Guru

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OH BTW, welcome to the Forum, Thailen !

Here's a pretty neat video of using copper sulfate to combat the roots but I don't know if it will be applicable to your situation.

http://landscaping.wonderhowto.com/how-to/prevent-roots-your-sewer-line-3989/

Good Luck and keep us in the loop if you can.  Especially if you find a way that works and it hasn't been mentioined here.

meller



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Last time I studied up on the building codes, ABS was specified for D-W-V (Drain-Waste-Vent) in all residential and light commercial plumbing installations.   PVC was approved for cold water pressure systems up to - if I recall correctly - 35psi, and copper was specified for pressures above that. All of the work I ever did was done in copper for service, cold and hot water, and in ABS for inside D-W-V, with a transition to a clay soil pipe at the edge of the foundation line, or under the house in a crawl space or basement if there was one.  I used PVC only for outside systems like sprinklers, and hose bibs in the yard, and for condensate drains where they were in use.  Yeah, plastic is much easier to use, especially for the inexperienced plumber, or someone who just doesn't want to mess with soldering, or packing joints, but there is a good reason for the codes being what they are: plastic is not durable in many uses, and is much more suceptible to damage from mechanical mistakes, like hitting a buried pipe with a shovel.  As for root penetration, any weakness in the joints of any installation will allow roots to work their way into the pipe; I doubt that roots will penetrate the wall of any sound pipe.



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Senior Member

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them roots can come in the field lines big time. stop em plum up. they wont grow through solid pipe or a well made joint.i use pvc here for most things. insulated it does fine and easy to repair or ad to if needed.and its cheap, like me.


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