Overview
PVC (white) and ABS (black) are the two plastic pipes I see in residential drain, waste, and vent work. That is the whole scope here: DWV. These pipes carry wastewater and sewer gas, not pressurized water to your fixtures. The supply side is a different decision entirely, PEX versus copper, and you should keep it separate in your head and on your material list.
Both plastics are cheap, light, and easy to cut and work with a handsaw and a deburring tool. Neither one is exotic. A homeowner can glue up a clean DWV joint after one honest practice run. So the choice between them is not really about which plastic is dramatically better. It comes down to two things: what your local code allows or requires, and which one the supply houses and inspectors in your region expect to see.
The practical differences that matter day to day are how you join them and a few performance nuances around temperature, noise, and sunlight. None of those usually override what code says. I will walk through what each pipe is, where they actually differ, why region decides it, and how to pick without overthinking it.
What They Are
PVC is polyvinyl chloride. For DWV it shows up as white or light-colored rigid pipe, almost always schedule 40. You join it with a two-step process: wipe on purple primer to soften and clean the surfaces, then apply solvent cement and push the fitting home with a quarter turn. The primer step is not optional in most codes, and the purple dye exists so an inspector can see at a glance that you primed the joint.
ABS is acrylonitrile butadiene styrene. It is the black pipe, also schedule 40 for DWV, and it is manufactured as a single homogeneous wall rather than a foam-core sandwich. You join ABS with a one-step cement: no primer, just clean the pipe, apply cement, and push it together. That one fewer step adds up over a whole house of waste lines. ABS is also a bit more flexible and holds up better to cold and impact.
Both do the same job and both rely on a proper solvent-weld for a permanent, watertight joint. The daily difference a plumber actually feels is the joining process: two steps and a primer can for PVC, one step for ABS.
The Real Differences
Joining is the first real split. PVC needs primer plus cement, two steps and two cans on the truck. ABS takes one-step cement, which is faster and means one less thing to forget on a joint buried in a wall.
Temperature and impact favor ABS. It stays tougher in freezing weather and resists cracking when something hits it cold, which is why a lot of cold-climate regions lean on it. PVC handles sustained hot water a little better and is more rigid, which some plumbers prefer for long horizontal runs that need fewer hangers.
Noise goes the other way. PVC transmits a bit less sound, and you can get heavy-wall or foam-core versions that quiet a drain stack further. ABS waste lines can be noticeably louder when water rushes through, which matters behind a bedroom or living room wall.
UV is a real weakness for ABS. Leave it in direct sun and it degrades and gets brittle, so any exposed ABS gets painted. PVC is not great exposed either, but it tolerates sun longer.
The last difference is code and region, and it is the one that usually wins. Some areas mandate one or the other. And most forbid solvent-welding PVC to ABS together. Use a mechanical transition coupling for that, never glue.
Code and Region Decide It
Here is the part people skip: the PVC-versus-ABS choice is usually made for you before you ever pick up a saw. Local code and regional norm settle it. The West and Canada lean heavily ABS. Much of the East and South lean PVC. Some jurisdictions allow either and let you choose; others mandate one specific material for DWV and will fail an inspection if you show up with the wrong color pipe.
So the first move is not weighing flexibility against noise. It is finding out what your local plumbing code requires and what the inspector in your jurisdiction expects to see. The supply house near you stocks what the local trade uses, which is a strong tell on its own. If the shelves are full of black pipe, you are in ABS country.
The cardinal rule, regardless of region: do not solvent-weld PVC to ABS. The cement does not properly bond the two dissimilar plastics, and a joint that looks fine can fail later and leak. When you genuinely need to connect PVC to ABS, on a repair or a remodel that meets old work, use a listed mechanical coupling. A banded, Fernco-style transition coupling with a stainless shield and clamps is the right tool. Glue is not.
How to Choose
Start with local code and what the supply houses and inspectors expect. That single check usually settles the whole decision, so make it first. There is no point debating the merits of one plastic if your jurisdiction only permits the other.
If code allows either, then the nuances come into play. Pick ABS when cold and impact resistance matter, when the one-step glue speed helps a big job move, and when it is the local norm anyway. Pick PVC when noise control matters, such as a stack behind a living space, when you want a bit more rigidity on long runs, or when it is simply what your region builds with.
On a repair, match the existing pipe. If the house is plumbed in ABS, stay in ABS. If you must bridge to a different material, use a proper mechanical transition coupling, not cement. Do not mix glued joints across the two plastics.
Keep this separate from your supply decision. PVC versus ABS is DWV only. PEX versus copper is the supply side, and the two choices do not interact. Whichever DWV pipe you land on, the joints decide whether it lasts: right primer, right cement, clean cuts, and full fit-up matter more than which plastic you bought.
FAQ
Can I glue PVC directly to ABS? No. Solvent cement does not properly bond the two dissimilar plastics, and the joint can fail and leak later even if it looks solid at first. To connect them, use a listed mechanical transition coupling, a banded Fernco-style fitting with a stainless shield and clamps. Never rely on glue across the two materials.
Is PVC or ABS better for DWV? Neither is clearly better. ABS is faster to join with one-step cement and holds up better in cold and against impact. PVC is a bit quieter and more rigid. The deciding factor is almost always what your local code allows and what your region builds with, not the performance gap.
Why is some pipe black and some white? Color signals the plastic. Black is ABS, white or light gray is PVC. Inspectors read color at a glance, which is also why PVC primer is dyed purple, so they can confirm you primed the joint. Matching the existing color on a repair tells you which material you are working with.
Does this cover supply pipe too? No. PVC and ABS are for drain, waste, and vent only, not pressurized water to your fixtures. The supply decision is PEX versus copper, a separate choice that does not interact with the DWV pipe you pick.