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Old 07-05-2008, 09:36 AM   #1
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Completing a roughed in basement bathroom


Hello folks!

I have a couple questions for you regarding my roughed in basement bathroom, but here's a photo first:


Obviously, the 4" pipe (closest in image) is for the toilet, but the two 2" pipes on the right I'm unclear as to their intended purpose. I assume one is for the sink, and the other is ........? Maybe a shower, but they're way to close together to be meant to be sink and shower in my opinion.

Here's are my goals:
#1 Install toilet
#2 Install sink
#3 Install shower
#4 Plumb wet bar
#5 Build a raised "platform" for the toilet, sink, shower to sit on.

Here's a few notes to give you a visual of my goals, ideas and to explain my home's particular construction in regard to sewer.

- I'd like to build a raised 'platform' with 2" X 6" and double layer 3/4" plywood. I'm doing this for two reasons. One for 'fancy' effect and the other to provide under-floor routing of the shower waste pipe. When complete, it will be ceramic tiled like the concrete floor shown in the photo.

- The wall on the right is the concrete foundation wall.

- The studded and insulated wall on the left is an interior wall. On the other side of it is a wet bar, the sink is located just about center point in the studded wall.

- The 3" black pipe on the left carries waste from the kitchen and utility closet and one bathroom. The 3" black pipe on the right, goes towards the foundation wall, turns to the left and travels about 25' to carry waste from one bathroom.

- All of the sinks in the main floor have those "check valve" type vents. Nothing travels to the roof. Unknown how the showers and toilets area vented.

- The sewer is septic, not public. The basement floor drain and the main waste stack flow naturally to the first septic tank, so no pumps are needed.

- I bought a pedistal type sink. I'd like to install it at a 45 degree angle in the corner directly across the room based on viewing angle. I'm standing in the doorway of the room when I took the photo, so the sink would be the main focal point when you walk in the room. The toilet (of course) would be to the left, and the shower would be located out of frame to the right.

- The room is 7' X 7'.

Ok, that's everything I can think of. Here's my specific questions:

#1 Can I install drains for the wet bar sink, toilet, bath sink, and shower to the existing pipes shown in the photo?
If so, then "what goes where". That's my main question.

#2 How do I vent things? There's no main vent stack to the roof to tie into. Can the check valve type vent be used for everything I've got?

Plumbing is an area I have 'moderate' experience with, but new construction is fairly new to me.

Thanks in advance,
Bob

Last edited by Bob in St. Louis; 07-05-2008 at 10:01 AM. Reason: Got a sore neck looking at improperly rotated photo. Had to fix that!
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live42day (11-18-2011)
Old 07-05-2008, 10:12 AM   #2
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Completing a roughed in basement bathroom


Sorry, but your picture was not shown. says it was deleted or removed.
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Old 07-05-2008, 10:18 AM   #3
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Completing a roughed in basement bathroom


That's strange, I can still see it...

I'll try to post it again, but here's a link just in case:

http://s85.photobucket.com/albums/k6...DSC_0005-1.jpg

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Old 07-05-2008, 05:18 PM   #4
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Completing a roughed in basement bathroom


Are the photos working now?
Just wanted to make sure.

Bob
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Old 07-08-2008, 01:30 PM   #5
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Completing a roughed in basement bathroom


Nothing?
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Old 11-18-2011, 09:51 AM   #6
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Completing a roughed in basement bathroom


Hey Bob,
it's in the laundry room. toilets are the other end of home and work well. the sinks and washer send to much water to quickly on a perfectly level pipe causing the back flow. A friend suggested to relay pipe. Another friend suggested installing a sump pump. I am disabled/no income and my wife can't physically repair. Ideas??????
photoes not working

Last edited by live42day; 11-18-2011 at 09:52 AM. Reason: to let bob know photoes are not working
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Old 11-18-2011, 09:53 AM   #7
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Completing a roughed in basement bathroom


photos working now!!!!!!!!!!! yeahhhhhh
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Old 11-18-2011, 09:55 AM   #8
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Completing a roughed in basement bathroom


BRB nap time meds working faster that i am
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Old 11-18-2011, 12:12 PM   #9
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Location: St. Louis, MO
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Completing a roughed in basement bathroom


Quote:
Originally Posted by Bob in St. Louis View Post
Hello folks!
Here's are my goals:
#1 Install toilet
#2 Install sink
#3 Install shower
#4 Plumb wet bar
#5 Build a raised "platform" for the toilet, sink, shower to sit on.

Here's a few notes to give you a visual of my goals, ideas and to explain my home's particular construction in regard to sewer.

- I'd like to build a raised 'platform' with 2" X 6" and double layer 3/4" plywood. I'm doing this for two reasons. One for 'fancy' effect and the other to provide under-floor routing of the shower waste pipe. When complete, it will be ceramic tiled like the concrete floor shown in the photo.

- The wall on the right is the concrete foundation wall.

- The studded and insulated wall on the left is an interior wall. On the other side of it is a wet bar, the sink is located just about center point in the studded wall.

- The 3" black pipe on the left carries waste from the kitchen and utility closet and one bathroom. The 3" black pipe on the right, goes towards the foundation wall, turns to the left and travels about 25' to carry waste from one bathroom.

- All of the sinks in the main floor have those "check valve" type vents. Nothing travels to the roof. Unknown how the showers and toilets area vented.

- The sewer is septic, not public. The basement floor drain and the main waste stack flow naturally to the first septic tank, so no pumps are needed.

- I bought a pedistal type sink. I'd like to install it at a 45 degree angle in the corner directly across the room based on viewing angle. I'm standing in the doorway of the room when I took the photo, so the sink would be the main focal point when you walk in the room. The toilet (of course) would be to the left, and the shower would be located out of frame to the right.

- The room is 7' X 7'.

Ok, that's everything I can think of. Here's my specific questions:

#1 Can I install drains for the wet bar sink, toilet, bath sink, and shower to the existing pipes shown in the photo?
If so, then "what goes where". That's my main question.

#2 How do I vent things? There's no main vent stack to the roof to tie into. Can the check valve type vent be used for everything I've got?

Plumbing is an area I have 'moderate' experience with, but new construction is fairly new to me.

Thanks in advance,
Bob
Pour some water in the 2" pipes and see if it drains- look with a flashlight. If you see water standing there is already a trap under your slab. Given that they are taped up the way they are, likely there is no trap. You will need to vent anything you add to this space (except the toilet). It is possible one of the pipes is meant to be a drain and the other a vent. Per code, the vent must be at least 5' from your drain.

I would check to see where your existing vents are to see how much work you will actually have to do here. I don't know if you are in the city or the county, but in the city of St. Louis you cannot add the vents you describe and must vent to the outside.
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