Why ABS instead of PVC?
I have noticed that all the DWV plumbing in my MH is ABS plastic. Is there a technical reason why ABS is used exclusively? Is it just that ABS costs about 1/2 of what PVC costs? If I redo a goodly por...
Forum Discussion
jbbrick wrote:
ABS DWV fittings are designed for the proper slope for the waste and vent flow. PVC fittings are straight tees, 90's, etc. ABS are not "straight" fittings but have a built-in angle for proper drainage. For short runs like in our rigs it really doesn't make much difference, though. Regular PVC fittings are not legal in all codes for drainage as far as I know except in labs or specialized applications.
Sorry your comments are NOT true!
Same EXACT fittings are available in ABS or PVC. PVC is a superior product for sound reduction along with it's pipes are "STRAIGHT" as in not curved like ABS tends to be.
The terminology "DWV" means "drain, waste and vent". The drain/waste fittings have more of a sweep to them and the vents are more of a 90. You can use the drain fittings for vent piping and drain piping BUT you can't use the vent fittings for the drain piping.
