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Question of the Day These are inspection questions posted daily by members of InterNACHI's Educational Committee.

View Poll Results: What is the minimum pipe size for a sanitary waste?
1 inch 1 3.13%
1 1/4 inch 13 40.63%
1 1/2 inch 16 50.00%
1 3/4 inch 2 6.25%
Voters: 32. You may not vote on this poll

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  #1  
Old 9/6/06, 4:56 PM
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Gerry Beaumont Gerry Beaumont is offline
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Default QOD for 9/6/06 plumbing

Hi to all,

here is todays question

Regards

Gerry



Virtue is more to be feared than vice, because its excesses are not subject to the regulation of conscience.
Adam Smith (1723-1790)

Commercial property Inspection Tampa, Orlando, Sarasota, Jacksonville, Ft Launderdale, Miami, Florida.
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  #2  
Old 9/7/06, 7:03 AM
rcooke rcooke is offline
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Default Re: QOD for 9/6/06 plumbing

Quote:
Originally Posted by gbeaumont
Hi to all,

here is todays question

Regards

Gerry
Good one Gerry this should surprise a lot of people . Roy Cooke
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  #3  
Old 9/11/06, 12:22 AM
rcooke rcooke is offline
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Default Re: QOD for 9/6/06 plumbing

Waiting for the answer Roy Cooke
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  #4  
Old 9/11/06, 12:28 AM
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Gerry Beaumont Gerry Beaumont is offline
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Default Re: QOD for 9/6/06 plumbing

Quote:
Originally Posted by rcooke
Waiting for the answer Roy Cooke
Sorry Roy and all,

the correct answer is: 1 1/4 inches

Regards

Gerry



Virtue is more to be feared than vice, because its excesses are not subject to the regulation of conscience.
Adam Smith (1723-1790)

Commercial property Inspection Tampa, Orlando, Sarasota, Jacksonville, Ft Launderdale, Miami, Florida.
NACHI cell 484-429-5466
NACHI02121106
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  #5  
Old 9/11/06, 1:35 AM
rcooke rcooke is offline
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Default Re: QOD for 9/6/06 plumbing

Here is one that only uses a 3/4 for sanitary waste . http://www.saniflo.com/products/saniplus.asp
http://www.saniflo.com/downloads/ins...nsE_June06.pdf

The one I saw last month used A 1 inch .
I have seen quiet a few and they work great better then tearing up a lot of concrete and much cheaper . One has been running for ten years
Roy Cooke
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  #6  
Old 9/12/06, 11:08 PM
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Default Re: QOD for 9/6/06 plumbing

Assuming the question refers to "standard pipe sizes" Trap arms found under most sinks can be as small as 1-1/4" as Gerry said. I have never come across a tail piece smaller than 1-1/4" on a standard size sink.

I believe Sandiflo systems is not free flowing and requires grinder/blades to shop up the solids as it passes through.

This is my first reply as I just joined NACHI on Monday, I hope my response has not offended anyone.

Steve Blayney
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Old 9/12/06, 11:20 PM
rcooke rcooke is offline
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Default Re: QOD for 9/6/06 plumbing

Quote:
Originally Posted by sblayney
Assuming the question refers to "standard pipe sizes" Trap arms found under most sinks can be as small as 1-1/4" as Gerry said. I have never come across a tail piece smaller than 1-1/4" on a standard size sink.

I believe Sandiflo systems is not free flowing and requires grinder/blades to shop up the solids as it passes through.

This is my first reply as I just joined NACHI on Monday, I hope my response has not offended anyone.

Steve Blayney
Welcome steve we at NACHI try never to be offended .
You will see some discussions going on and figure war is comming and tomorrow is a new day .
Gerry said sanitary and I think this is it .
I sure would prefer to not get sprayed with it .
Gerry is one of our good teachers and we all try to keep him on his toes he is not always right but seldome wrong .
He will stumble on this site and have an openion soon I hope .
Roy Cooke
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  #8  
Old 9/13/06, 12:01 AM
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Default Re: QOD for 9/6/06 plumbing

Quote:
Originally Posted by rcooke
Welcome steve we at NACHI try never to be offended .
You will see some discussions going on and figure war is comming and tomorrow is a new day .
Gerry said sanitary and I think this is it .
I sure would prefer to not get sprayed with it .
Gerry is one of our good teachers and we all try to keep him on his toes he is not always right but seldome wrong .
He will stumble on this site and have an openion soon I hope .
Roy Cooke
Hi Roy, good one........... you got me I was only thinking about gravity wastes when I wrote the question, IRC states that all discharge piping of grinding pumps may not be smaller than 1.25 inches, however it also states:

Quote:
P2723

MACERATING TOILET SYSTEMS

P2723.1 General.

Macerating toilet systems shall be installed in accordance with manufacturer's installation instructions.
P2723.2 Drain.
The minimum size of the drain from the macerating toilet system shall be 0.75 inch (19.1 mm) in diameter.
Nice catch mate

Regards

Gerry



Virtue is more to be feared than vice, because its excesses are not subject to the regulation of conscience.
Adam Smith (1723-1790)

Commercial property Inspection Tampa, Orlando, Sarasota, Jacksonville, Ft Launderdale, Miami, Florida.
NACHI cell 484-429-5466
NACHI02121106
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