PDA

View Full Version : ABS to PVC Septic Connections



chuck b
05-03-2011, 03:47 PM
Need to connect 3" PVC to a 3" black ABS pipe which exits an old septic system at a newly acquired cottage.

The pipe run is through a open crawl space under the cottage. Do I use SCH 30 or SCH 40 pipe. Advantages or disadvantages of either?

Also, would the 3" Black ABS pipe match SCH 30 or 40? I will of course be making my rough drain connections throughout the cabin from the PVC.

I have purchased the "Green Bottle" ABS to PVC cement. Is it true that you only primer the PVC and NOT the ABS (hearing that it dissolves ABS)?

Thanks.

cwhyu2
05-03-2011, 05:07 PM
Fernco will have list of products,you cannot glue pvc to abs,pvc is solvent weld,abs is glued non compatable materials. fernco might have solve your problem.
Clay

Tom Sawyer
05-03-2011, 06:01 PM
There are only two approved methods for joining PVC and ABS and glue ain't either of them. You either need a banded coupling (indoors) a non banded coupling (outdoors) or male and female adapters.