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Old 02-11-2011, 02:22 PM   #1
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Angle to join in to main drain


Hi,

This seems obvious, but I wish to confirm.

I want to add a shower in the basement. I will need to join to the main sewer which is buried in the concrete. The convenient place to join in would produce an angle that is in the opposite direction to the flow of the main sewer.

I assume that all joins to a gravity-operated sewer would need to be either 90 degrees or at an acute angle to the flow of the sewer.

Am I right ? It means more work for me, of course.

Thanks.

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Old 02-11-2011, 02:47 PM   #2
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Angle to join in to main drain


I'm having a hard time visualizing it. Could you post a pic or diagram?

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Old 02-11-2011, 02:49 PM   #3
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Angle to join in to main drain


Sounds like he is asking if he needs a y to connect into the main. Were I am at yes I always connect with Y's into 99 percent of drainage. Yes you will want to tip it up just a hair to meet the fall of the existing pipe coming from the shower.
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Old 02-11-2011, 03:06 PM   #4
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Angle to join in to main drain


Yeah, i guess that's what I'm asking. And also that the Y needs to meet into the main sewer at such an angle that the water flowing from the shower and the water flowing down the main are going in the same direction ( following grade ). Otherwise, the force of the water from the shower drain might move up the main a bit in the wrong direction.

Unfortunately I can't post a diagram.

Thanks.
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Old 02-12-2011, 11:33 AM   #5
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Angle to join in to main drain


You can't go 90 degrees into the main. You need a Wye fitting.
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Old 02-12-2011, 12:28 PM   #6
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Angle to join in to main drain


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Originally Posted by wease View Post
You can't go 90 degrees into the main. You need a Wye fitting.
A WYE and a 45 or a Combo WYE is 90 degrees. They're used all the time.
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Old 02-13-2011, 09:00 AM   #7
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Angle to join in to main drain


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Originally Posted by LateralConcepts View Post
A WYE and a 45 or a Combo WYE is 90 degrees. They're used all the time.
Of course...is that not why I said a WYE is needed?

The OP made it sound like he wanted to use this to connect.
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Old 02-13-2011, 09:30 AM   #8
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Angle to join in to main drain


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Of course...is that not why I said a WYE is needed?
You said you "CAN'T" go 90 degrees into the main. A combo wye or san-t are both 90 degrees.
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Old 02-13-2011, 09:34 AM   #9
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Angle to join in to main drain


Quote:
Originally Posted by LateralConcepts View Post
You said you "CAN'T" go 90 degrees into the main. A combo wye or san-t are both 90 degrees.
Did you even read what I wrote? I said a wye, then you can do whatever. Run along and get a life now.

By the way, you can't use a san-t into that.
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Old 02-13-2011, 09:50 AM   #10
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Angle to join in to main drain


Quote:
Originally Posted by wease View Post
Did you even read what I wrote? I said a wye, then you can do whatever. Run along and get a life now.

By the way, you can't use a san-t into that.

Actually, yes I read what you wrote. I'm sure everyone will agree and read the same thing I read

You said:
Quote:
You can't go 90 degrees into the main. You need a Wye fitting.
And actually if you re-read the OP, you'll see it sounded more like they wanted to put a fitting in backwards
Quote:
The convenient place to join in would produce an angle that is in the opposite direction to the flow of the main sewer.
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Old 02-13-2011, 10:14 AM   #11
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Angle to join in to main drain


Quote:
By the way, you can't use a san-t into that.
By the way, you're right. Can't lay a san-t on it's back. Glad TheEplumber was able to teach you that in this thread 4 days ago More space trouble on bathroom waste pipe
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Old 02-13-2011, 10:15 AM   #12
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Angle to join in to main drain


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Originally Posted by LateralConcepts View Post
By the way, you're right. Can't lay a san-t on it's back. Glad TheEplumber was able to teach you that in this thread 4 days ago More space trouble on bathroom waste pipe
...and now you've learned something. Have a great day.

By the way, I have a lot to learn about plumbing and do not know it all. That's why I come here. I didn't say anything wrong. Not sure why you're attacking me.
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Old 02-13-2011, 10:25 AM   #13
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Angle to join in to main drain


Quote:
By the way, I have a lot to learn about plumbing and do not know it all. That's why I come here. I didn't say anything wrong. Not sure why you're attacking me.
I wasn't attacking you. I was simply trying to clarify for the OP. I think you took it the wrong way. I don't know everything either, but I help where I can. We're all here to learn and assist. If you're really trying to learn however, don't reply then with smart alec remarks like
Quote:
"Run along and get a life now".
.
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Old 02-13-2011, 10:34 AM   #14
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Angle to join in to main drain


Quote:
Originally Posted by LateralConcepts View Post
I wasn't attacking you. I was simply trying to clarify for the OP. I think you took it the wrong way. I don't know everything either, but I help where I can. We're all here to learn and assist. If you're really trying to learn however, don't reply then with smart alec remarks like .
Clarify for the OP? You said he could use a sanitary tee in this situation.

...and yes you are attacking me for no reason. I'm still not sure why, maybe you're having a bad day? I will respect that and wish you a great rest of the day.
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Old 02-13-2011, 10:44 AM   #15
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Angle to join in to main drain


Where did I ever say he could use a sanitary tee in this situation?

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