Here are the pros and cons.
ABS is easier to work with due to its one step process. You cut it, glue it, and put it together and if you cut it square, it is perfect.
However, ABS is foam core so if you don't glue the end of every piece of pipe less than 1' long, you will get a leak and be unable to pass your pressure test.
ABS also is more flexible than PVC so it will warp in the sun. Proper precautions need to be made to prevent it from being exposed to the sun.
PVC is easy to work with in the same manner as ABS, but if you buy foam core, you will have the same problems. You can buy PVC in solid core. The real problem with PVC is it is a 2 step process. You have to use purple primer before you glue each joint and hub. ABS only needs glue. If you don't use the cleaner, the joints will come apart. The problem with the purple primer, is it is so viscous, it literally gets all over everything and makes the piping look terrible unless you are extreemly carefull. Often times you will end up with purple runns down the white pipe. Many plumbers won't use it because it looks bad when installed.
Finally, PVC must be held together every joint for 7 to 10 seconds, or it will automatically come apart. ABS glues immediately and won't come apart.
So there you have it, these are the real differences. The basic cost is the same for the material, within a few cents, but the labor for PVC is higher than ABS.
Good Luck
Raymond VinZant Plumbing Prof. |
Member Since
08/30/2004
Total Contributions
230 Posts
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