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Old 10-07-2012, 03:37 PM   #1
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Basement plumbing design


My house was built three years ago (in South Dakota) and, unfortunately, we weren't around when it was built. We are looking at finishing the basement, but I'm a little confused on what they've left me. In the picture you can see two stub ups as well as the main drain that is coming from the other two 1/2 baths and the laundry room (all upstairs). The tub is also roughed in. I dug down in the box and found a 2" line running horizontally. The smaller of the two pipes is also 2" and the other is 3". In the other picture, you can see the line coming down from the kitchen sink (going into the slab) as well as a 2" capped line (along the joists--you can see it start but the end is blocked by the wall.)

Here's what I know (or at least I think I know):
the capped line running horizontally is for future venting..
The 3" is for the toilet
The box is for the tub. The way I have it drawn out, it should be a right drain set-up.
The other 2" line is for the vanity.

I'm a bit confused on how to properly vent everything. Any suggestions would be greatly appreciated. I also included a copy of the floorplan that we got from the builders.

Thanks in advance for the help.

-Nick-
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Basement plumbing design-dsc00840.jpg   Basement plumbing design-dsc00844.jpg   Basement plumbing design-jennifer-durham_20100719_133012.jpg  

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Old 10-07-2012, 03:45 PM   #2
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Basement plumbing design


My house was built three years ago (in South Dakota) and, unfortunately, we weren't around when it was built. We are looking at finishing the basement, but I'm a little confused on what they've left me. In the picture you can see two stub ups as well as the main drain that is coming from the other two 1/2 baths and the laundry room (all upstairs). The tub is also roughed in. I dug down in the box and found a 2" line running horizontally. The smaller of the two pipes is also 2" and the other is 3". In the other picture, you can see the line coming down from the kitchen sink (going into the slab) as well as a 2" capped line (along the joists--you can see it start but the end is blocked by the wall.)

Here's what I know (or at least I think I know):
the capped line running horizontally is for future venting..
The 3" is for the toilet
The box is for the tub. The way I have it drawn out, it should be a right drain set-up.
The other 2" line is for the vanity.

I'm a bit confused on how to properly vent everything. Any suggestions would be greatly appreciated. I also included a copy of the floorplan that we got from the builders.

Thanks in advance for the help.

-Nick-


Last edited by eodschulte; 10-07-2012 at 03:53 PM.
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Old 10-07-2012, 04:08 PM   #3
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Basement plumbing design


stand back and take a pic and post it so we can see what you see
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Old 10-07-2012, 04:12 PM   #4
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Basement plumbing design


I accidentally posted this thread three times and I don't know how to delete it. I have three pictures in my first post.
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Old 10-07-2012, 04:13 PM   #5
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Basement plumbing design


i would vent the sink and tub .
is there a trap on the toilet ?
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Old 10-07-2012, 04:15 PM   #6
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Basement plumbing design


Here are the pics
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Basement plumbing design-jennifer-durham_20100719_133012.jpg   Basement plumbing design-dsc00840.jpg   Basement plumbing design-dsc00844.jpg  
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Old 10-07-2012, 04:17 PM   #7
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Basement plumbing design


is there a trap on the tub rough in?
i would vent sink and tub
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Old 10-07-2012, 04:19 PM   #8
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Basement plumbing design


There is no trap on the tub yet. The tub vent was the one I was worried about. I wasn't sure if it would count as a vent if the tub was connected (underground) to the 2" vanity/vent (I've seen some people say there is a max distance.) I'm not sure how to vent off the drain/p-trap in the boxed area that they left open for me otherwise.
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Old 10-07-2012, 04:31 PM   #9
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Basement plumbing design


glue a t up on a 45 and run vent up on angle till out of way for tub valve then turn up vertical with another 45 to floor joists and tie into a the vent with a t . the t at tub would then have a trap to connect tub. then the t at vent would continue over to sink 90 down to sink put a t at pipe to connect sink trap.

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