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Old 09-01-2013, 11:54 AM   #1
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venting question


A plumber told me this and I have no clue what there talking about. Is this accurate or not:

If the tee or wye used in venting is installed vertically, then the fitting is installed upside down, so that the 90 or 45 used is pointing down.

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Old 09-01-2013, 12:16 PM   #2
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venting question


when connecting vents, the tee or wye is installed "upside down"
I don't understand your 90 and 45 comment though

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Old 09-01-2013, 12:46 PM   #3
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venting question


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Originally Posted by TheEplumber View Post
when connecting vents, the tee or wye is installed "upside down"
I don't understand your 90 and 45 comment though
what do you mean installed upside down? I keep looking online and see nothing about it being installed upside down?
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Old 09-01-2013, 01:13 PM   #4
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venting question


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Originally Posted by detroittigerfan View Post
what do you mean installed upside down? I keep looking online and see nothing about it being installed upside down?
I assumed you knew since you referenced it in your OP-

Think like water- When water drains down from the roof vent, it needs to flow to the drain line it vents. Drainage fittings are shaped to allow this. Thats when you put a tee upside down.
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Old 09-01-2013, 01:29 PM   #5
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venting question


Quote:
Originally Posted by TheEplumber View Post
I assumed you knew since you referenced it in your OP-

Think like water- When water drains down from the roof vent, it needs to flow to the drain line it vents. Drainage fittings are shaped to allow this. Thats when you put a tee upside down.
You mean a WYE?
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Old 09-01-2013, 01:40 PM   #6
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venting question


Rain water and condensate in a vent must be self draining. That way in areas that have winters an ice plug is not formed in the vent. I hope that will assist your question.
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Old 09-01-2013, 02:01 PM   #7
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venting question


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Originally Posted by Ghostmaker View Post
Rain water and condensate in a vent must be self draining. That way in areas that have winters an ice plug is not formed in the vent. I hope that will assist your question.
When you have a wye or tee for venting don't you want the bend facing the direction of air movement?
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Old 09-01-2013, 02:06 PM   #8
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venting question


If your Wye or tee is vent only the rain and condensate flows downward towards your basement. So you would set the fittings to help that flow. If you are picking up a drain trap and use a y 45 fitting to do it in a vertical position it would place your trap above the vent and possibly be turned down. But that would be a drain vent application.
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Old 09-01-2013, 04:14 PM   #9
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venting question


Quote:
Originally Posted by detroittigerfan View Post
You mean a WYE?
No, I don't-wye's or tees can be used.
I don't think we are talking about the same thing or the same portion of the vent system.

You have a thread running here too drain question

I'm guessing these threads are related- can you just upload a picture of what your working on?

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