lochcarron
New Member
Can anyone explain why at Home depot (in Canada) they have signs posted saying do not use cellular core abs pipe below slab. I didn't know there was another type of abs.
cellular core abs
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Jadnashua
Retired Defense Industry Engineer xxx
My guess is that the cellular core stuff the walls aren't as strong as the solid stuff. The backfilling process and people walking around while a slab is installed may damage the walls of the cellular core stuff. The cellular core stuff is lighter since there is some air in the pipe vs all resins.
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Kristi
Tradesman Plumber
There are two grades of ABS... the cellcore and the good stuff 
Cellcore is much much cheaper, and used for venting and above ground drainage. The more solid, expensive stuff is preferred underground... but that doesn't stop people from putting the cellcore underground! It's flexible, a bit brittle, lighter, thinner... doesn't sound like longevity to me...
Cellcore is much much cheaper, and used for venting and above ground drainage. The more solid, expensive stuff is preferred underground... but that doesn't stop people from putting the cellcore underground! It's flexible, a bit brittle, lighter, thinner... doesn't sound like longevity to me...
Master Plumber Mark
Sensitivity trainer and plumber of mens souls
foam core
foam core is used above ground because it is supposed
to be cheaper and much QUIETER than sch 40 pipe.....
its ok for above ground projects....
its not supposed to be used under ground..
foam core is used above ground because it is supposed
to be cheaper and much QUIETER than sch 40 pipe.....
its ok for above ground projects....
its not supposed to be used under ground..
lochcarron
New Member
Thanks so much for your help!
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