Finishing basement, need help identifying plumbing pipes

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HansG

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I decided to go ahead and finish my basement but i am unsure of what pipe goes to which appliance. I thought the 4" pipe was for the toilet but the more research i do i'm not so sure. There's also a 3" pipe next to the house foundation that i do not know what it is. I was also wondering if the 1.5" pipe is used for the sink? I would really appreciate it if someone could help me out. Thank you.[/ATTACH]
 

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HansG

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Thank you Frodo, I was just curious because the upper floor toilets are done in 3" pipe. I guess that was done because it is easier to conceal in the walls. I was also reading about newer homes being installed with a 4" pipe for radon remediation but i don't think they would have installed that pipe in the location of what looks like a bathroom rough-in. Thanks again, i'm just an electrician trying to be a plumber and becoming utterly confused.
 

frodo

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Thank you Frodo, I was just curious because the upper floor toilets are done in 3" pipe. I guess that was done because it is easier to conceal in the walls. I was also reading about newer homes being installed with a 4" pipe for radon remediation but i don't think they would have installed that pipe in the location of what looks like a bathroom rough-in. Thanks again, i'm just an electrician trying to be a plumber and becoming utterly confused.
i use 4'' on toilets in the concrete, because a 3'' flange fits inside the pipe
if you use 3'', you wouuld have to wrap the pipe and dig the wrap out
to fit the fitting over the pipe
 

HansG

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Thank you again Frodo, the pic really helps. I do like the slings do you have a webpage?
 

plumberscott

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Have someone go around running the sinks flushing toilets and go and see if u can hear the water
 
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