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Old 01-25-2013, 05:01 PM   #1
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drain question


This make sound like a dumb question but when my bathroom sinks drains I can hear a slight suctioning noise as it drains. Is this normal?

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Old 01-25-2013, 05:09 PM   #2
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Well,.... it ain't abnormal,... water rushin' past the over-flow will do that...

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Old 01-25-2013, 05:24 PM   #3
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May be a blocked up or lack of a proper vent.
I'd be more concerned if when a toilet or tub is drained if you hear it.
That could mean it was sucking the drain trap dry which would allow sewer gas in.
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Old 01-25-2013, 05:28 PM   #4
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Well,.... it ain't abnormal,... water rushin' past the over-flow will do that...
I mean when the water drains from the sink you should hear some type of suctioning as its draining wouldn't you?
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Old 01-25-2013, 05:39 PM   #5
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Just look inside the drain when it's done. Is there still water left in it in the trap? If so then it's fine.
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Old 01-25-2013, 05:44 PM   #6
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Well,.... it ain't abnormal,... water rushin' past the over-flow will do that...
Whats your opinion on venting 2nd story fixtures? Do you think running a separate stack for them is better or re-venting the first floor fixtures to reach above the 2nd floor?
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Old 01-25-2013, 05:54 PM   #7
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Whats your opinion on venting 2nd story fixtures? Do you think running a separate stack for them is better or re-venting the first floor fixtures to reach above the 2nd floor?
Whats your obsession with 2 story vents? If the first floor vents are done correctly, 2nd floor vents will have no impact- vice- versa.
Each fixture needs to be vented and there are several acceptable ways to do that.
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Old 01-25-2013, 06:07 PM   #8
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No impact? So, your saying thats its perfectly fine to just vent 2nd story fixtures through the main stack so then the first story fixtures are wet vented??
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Old 01-25-2013, 06:20 PM   #9
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My code(UPC) does not allow multiple floor wet venting. As I stated- If the first floor vents are done correctly
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Whats your obsession with 2 story vents? If the first floor vents are done correctly, 2nd floor vents will have no impact- vice- versa.
Each fixture needs to be vented and there are several acceptable ways to do that.
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Old 01-25-2013, 06:27 PM   #10
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Another vent issue post, the first thing is that DIY'ers need to understand what a wet vent really is /wet vent /wet bend /waste and vent combinations /etc, lets get the wheels rolling?

1. i have a three story home can i use one vent from the first set of fixture on the first floor to the third set of fixture on the third floor.?

if yes explain if no explain this will be the new DIY learning form plumbing 101
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Old 01-25-2013, 06:33 PM   #11
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Any floor above that has fixtures the floor below needs to re-vent to at least 6'' above the second floor fixtures or have its own stack. I am by no means an expert but that is what I was told. If a second floor has its own stack is it only a vent stack or is it a complete stack that runs from roof and down to the basement where it ties into the main?
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Old 01-25-2013, 06:36 PM   #12
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Just wait til the guys start posting youll learn a bit more. were not talking about reventing diff, subject iam talking about a direct vent. one vent three bathrooms.
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Old 01-25-2013, 06:45 PM   #13
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Why don't we complicate this and add a sub drain with an ejector..... what do we do with the pump vent and the fixture vents?
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Old 01-25-2013, 06:50 PM   #14
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no no E lets get them to walk before they can run.
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Why don't we complicate this and add a sub drain with an ejector..... what do we do with the pump vent and the fixture vents?
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Old 01-25-2013, 06:52 PM   #15
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no no E lets get them to walk before they can run.
Roger that

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