Connect PVC to Orangeburg ?

[njoracle]

I have 4" Orangeburg pipe (circa 1968) to which I need to connect a piece 4" PVC. Are the dimensions for the Orangeburg and PVC the same or is there some kind of reducer required?

[HarryB]

[Speedy Jim]

Orangeburg is about 4.64" OD and sch 40 PVC is 4.5", while sch 35 (SDR) PVC is 4.21"

Mission couplings are most often used for underground connections:

And Fernco makes a similar line: You may need to go to a bldg supply house, rather than Big Box.

Jim

[njoracle]

I'm not replacing the Orangeburg. I'm just adding a tee to the outlet side of a septic tank. The tee will be made of PVC and connect to the Orangeburg which goes to the septic distribution box as shown below:

__Cap__ ! ! ! ! ! !~~~~_________________------| ----- scum level ------ ! PVC Orangeburg D | ! _________________ Box | ----- water level ------ ! !~~~~ ------| ! ! ! ! ! !

Technically the descripti> Replace the Orangeburg you are only postponing problems - but first a

[njoracle]

Thanks. I have a good plumbing supply house in the area so I'll check with them.

[Stubby]

I crushed my Orangeburg connection to the septic tank by driving a lawn cart full of rocks back and forth over it. Once I figured out that was the cause of my backup problems, I dug it up and dropped in some over-size PVC. Some concrete covered the junctions. No problems in about 5 years.

njoracle wrote:

[gfretwell]

Home Depot has Ferncos.