4” schedule 4o pipe does not fit schedule 40 4” wye

[Big T]

As title says, schedule 40 pipe the OD is too small for the 4” inlet to the wye:



Did they sell adapters? Or do I need to buy 4” schedule 80 pipe. The 3” to 4” adapter over to the left has two different size ODs for 4”.

 

[jrsavoie]

As title says, schedule 40 pipe the OD is too small for the 4” inlet to the wye:

View attachment 94138

Did they sell adapters? Or do I need to buy 4” schedule 80 pipe. The 3” to 4” adapter over to the left has two different size ODs for 4”.

So the Y with the 4" pvc pipe in.it is a different ID on each end?
If so, it must be some type of adapter Y.

Often to go from different types of pipe to PVC, they make rubber couplings with hose clamps.

I'm not really sure what you're asking.

Google Search

 

[Big T]

So the Y with the 4" pvc pipe in.it is a different ID on each end?
If so, it must be some type of adapter Y.

Often to go from different types of pipe to PVC, they make rubber couplings with hose clamps.

I'm not really sure what you're asking.

Google Search

That 4 inch schedule 40 pipe laying to the right, fits too loose to be glued into the 4 inch 45 wye to the left.

 

[jrsavoie]

That 4 inch schedule 40 pipe laying to the right, fits too loose to be glued into the 4 inch 45 wye to the left.

I've never run into that before.
It seems the Y must be an adapter to go from schedule 40 to something else.
Or it's just made wrong.

 

[Big T]

I've never run into that before.
It seems the Y must be an adapter to go from schedule 40 to something else.
Or it's just made wrong.

All the Y’s are this way. They require a larger OD to glue fit. The Y says 4 inch, but the ID measures 4 1/2” to 4 5/8”. The OD of the schedule 40 pipe is 4 1/4”

 

[jrsavoie]

All the Y’s are this way. They require a larger OD to glue fit. The Y says 4 inch, but the ID measures 4 1/2” to 4 5/8”. The OD of the schedule 40 pipe is 4 1/4”

Something isn't right.

Are the Ys the same size on.both ends?

I've glued a fair amount of pvc and never encountered that issue.

Is the Y schedule 40?

Can you see lettering on the Y?

I have a bunch of Y's and T Y's in the basement they're all schedule 40.

What is the diameter of a 4 inch PVC pipe?

4.50″
4-inch Schedule 40 PVC pipes are available in a variety of lengths, and they can be connected together using special connectors and fittings. The inside diameter of a 4-inch schedule 40 is 4.029″. The outside diameter is 4.50″, which gives the wall thickness around 1/4 inch.

Google Search

 

[Big T]

Something isn't right.

Are the Ys the same size on.both ends?

I've glued a fair amount of pvc and never encountered that issue.

Is the Y schedule 40?

Can you see lettering on the Y?

I have a bunch of Y's and T Y's in the basement they're all schedule 40.

Y is 8” x 8” x 4” schedule 40. 8” schedule 80 pipe glued in just fine to the Y. The issue is the 4” Y is too large for the 4” schedule 40.

I will head to Grainger during lunch tomorrow and get this addressed one way or another.

 

[jrsavoie]

Y is 8” x 8” x 4” schedule 40. 8” schedule 80 pipe glued in just fine to the Y. The issue is the 4” Y is too large for the 4” schedule 40.

I will head to Grainger during lunch tomorrow and get this addressed one way or another.

The only options I see are the 4" pvc, schedule 40 or 80, should measure about 4-1/2" OD

What does the lettering on the 4" schedule 40 pvc say?

 

[Big T]

The only options I see are the 4" pvc, schedule 40 or 80, should measure about 4-1/2" OD

What does the lettering on the 4" schedule 40 pvc say?

It says 4” schedule 40. It’s dark out so I’m not going to check. My feet are shit and that trench is treacherous. I measured the schedule 40 pipe and the OD was about 4 1/4”. The ID of the Y was 4 1/2”.

 

[jrsavoie]

It says 4” schedule 40. It’s dark out so I’m not going to check. My feet are shit and that trench is treacherous. I measured the schedule 40 pipe and the OD was about 4 1/4”. The ID of the Y was 4 1/2”.

Sounds like the pipe is the issue
Is it schedule 40 PVC pipe?

Is the 4" schedule 40, the black stuff in the picture?

If it's the black stuff, get the appropriate rubber coupling. You may stub a short piece of 4" pvc out of the Y to use a rubber coupling.

I have used rubber bushings before.
But things were just pushed together and not glued or clamped

 

[Turbine Doc]

Hard to see from photo, but sort of looks like you have 4" DWV pipe(thin wall) you are trying mate to schd 40 thick wall pipe both are schd 40 pressure rated but different diameters, if you have potential of root intrusion or possible crushing with driving over it if not buried deep enough, or frozen ground I'd go with thick wall all way, but there is an adapter to mate thin to thick wall https://www.homedepot.com/p/NDS-PVC-Adapter-4-in-DWV-SCH40-Hub-X-S-D-Hub-3P16/100377417

 

[Big T]

Hard to see from photo, but sort of looks like you have 4" DWV pipe(thin wall) you are trying mate to schd 40 thick wall pipe both are schd 40 pressure rated but different diameters, if you have potential of root intrusion or possible crushing with driving over it if not buried deep enough, or frozen ground I'd go with thick wall all way, but there is an adapter to mate thin to thick wall https://www.homedepot.com/p/NDS-PVC-Adapter-4-in-DWV-SCH40-Hub-X-S-D-Hub-3P16/100377417

The back is 3” corrugated from the downspout. Off to the left is an adapter which takes the 3” corrugated to the 4” PVC handling thin and thick wall. Guess I have my answer: need thick wall 4” PVC.

 

[jrsavoie]

The back is 3” corrugated from the downspout. Off to the left is an adapter which takes the 3” corrugated to the 4” PVC handling thin and thick wall. Guess I have my answer: need thick wall 4” PVC.

I'm sure you aready know, Don't run out of the downspouts to the pipe without a gutter box. / cleanable trap

 

[Big T]

The only options I see are the 4" pvc, schedule 40 or 80, should measure about 4-1/2" OD

What does the lettering on the 4" schedule 40 pvc say?

 

[Big T]

I'm sure you aready know, Don't run out of the downspouts to the pipe without a gutter box. / cleanable trap

 

[Glagulator]

The thin wall pipe is SDR35. You can use this bushing to connect to sch40.

https://www.lowes.com/pd/PVC-4-in-x-4-in-dia-PVC-Adapter-Fitting/3455246?store=1727&cm_mmc=shp-_-c-_-prd-_-plb-_-ggl-_-CRP_SHP_LIA_PLB_Online_Mid_Priority(E+Band)-_-3455246-_-local-_-0-_-0&gclsrc=aw.ds&gad_source=1&gad_campaignid=21218170281&gclid=EAIaIQobChMIt8aKzo7EjQMVjVR_AB08UCUeEAQYASABEgI9VPD_BwE

 

[Big T]

The thin wall pipe is SDR35. You can use this bushing to connect to sch40.

https://www.lowes.com/pd/PVC-4-in-x-4-in-dia-PVC-Adapter-Fitting/3455246?store=1727&cm_mmc=shp-_-c-_-prd-_-plb-_-ggl-_-CRP_SHP_LIA_PLB_Online_Mid_Priority(E+Band)-_-3455246-_-local-_-0-_-0&gclsrc=aw.ds&gad_source=1&gad_campaignid=21218170281&gclid=EAIaIQobChMIt8aKzo7EjQMVjVR_AB08UCUeEAQYASABEgI9VPD_BwE

Thank you! I picked up 4 at Lowe’s today. Tested them and they will work.

 

[smokymtn65]

Sorry late to the party you have 3034 or 2729 aka s/d pipe.

 

[MrMarty51]

Sorry late to the party you have 3034 or 2729 aka s/d pipe.

And we run out of beer and whiskey.

 

[Big T]

Sorry late to the party you have 3034 or 2729 aka s/d pipe.

Yeah I overdid it with the 8” Schedule 80, but some of that will be going under driveway on the other side of the property and I wanted the strength there. Probably could have gotten away with less, but could not return once it was bought. As the song goes, can’t stop now as the clothes are bought.