Go Back  DoItYourself.com Community Forums > Plumbing, Piping, Water Heating, Wells, Air & Water Filtration and Conditioning > Plumbing and Piping
Reload this Page >

can anyone explain these three things in a basement roughed out for a bathroom?

can anyone explain these three things in a basement roughed out for a bathroom?


  #1  
Old 06-23-24, 08:17 PM
E
Member
Thread Starter
Join Date: Mar 2019
Location: USA
Posts: 298
Received 1 Upvote on 1 Post
can anyone explain these three things in a basement roughed out for a bathroom?

At my daughter's relatively new house in CT, the basement is supposedly roughed out for a bathroom down there.

Anyone know what these 2 pipes and the larger, plastic covered area are for?

They are on septic system and you can see the line going out to the tank several feet above the basement floor. So they need an ejection pump I'd assume. is that larger area a waste pit?

Thanks!


 

Top Answer

 
06-24-24, 05:08 AM
Pilot Dane
Pilot Dane is offline
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 28,367
Received 2,323 Upvotes on 2,066 Posts
The pipe in the wall is where the drain line exits the house to go to the septic tank. Because the bathroom is located lower it cannot drain by gravity so everything must be pumped up and out. The big plastic cover is the sump where the basement bathroom will drain. The large 3" or 4" in the floor is for the toilet. A 2" pipe will be for a shower or bathtub. A 1 1/2" line will be for the sink.

Something very important to look for is a connection point in the ceiling for the plumbing vent needed for a basement bath. You will also need to run duct for a ventilation fan.
 
  #2  
Old 06-23-24, 08:22 PM
E
Member
Thread Starter
Join Date: Mar 2019
Location: USA
Posts: 298
Received 1 Upvote on 1 Post
OOPS! my bad. There's actually another pipe in the floor?!

 
  #3  
Old 06-23-24, 08:35 PM
W
Member
Join Date: Jun 2023
Posts: 110
Upvotes: 0
Received 27 Upvotes on 22 Posts
Looks like your pictures were taken sometime apart. Looks like the pipe through the wall is connected to the drainpipe above. The large round cover on the floor looks like a sump cover. Not sure about the others. One might be a slab vent for a radon pump, but that would usually be on the corner.
 
EdShnatter voted this post useful.
  #4  
Old 06-24-24, 05:08 AM
P
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 28,367
Received 2,323 Upvotes on 2,066 Posts
The pipe in the wall is where the drain line exits the house to go to the septic tank. Because the bathroom is located lower it cannot drain by gravity so everything must be pumped up and out. The big plastic cover is the sump where the basement bathroom will drain. The large 3" or 4" in the floor is for the toilet. A 2" pipe will be for a shower or bathtub. A 1 1/2" line will be for the sink.

Something very important to look for is a connection point in the ceiling for the plumbing vent needed for a basement bath. You will also need to run duct for a ventilation fan.
 
EdShnatter, sdodder, Zorfdt voted this post useful.
  #5  
Old 06-25-24, 02:30 PM
E
Member
Thread Starter
Join Date: Mar 2019
Location: USA
Posts: 298
Received 1 Upvote on 1 Post
THANKS! so those 3 vertical pipes go to the pit?

Pease don't laugh if this sounds stupid... if they want a different layout / smaller bath or some other reason to not use those 3 veritcal pipes, they could either dig up the floor for new pipes or more likely (and a reasonable way to deal with not liking where the builder put the pipes?) would be to build up the floor of bathroom and run waste lines above the concrete floor from the sump to where you want the fixtures?
 
  #6  
Old 06-25-24, 03:05 PM
Tolyn Ironhand's Avatar
Group Moderator
Join Date: Nov 2007
Location: United States
Posts: 14,491
Received 915 Upvotes on 773 Posts
The square box might be a rough in for a shower which would make the small pipe next to it a vent that has yet to be tied in.
 
  #7  
Old 06-26-24, 09:31 AM
Z
Forum Topic Moderator
Join Date: Sep 2005
Location: USA
Posts: 6,182
Received 436 Upvotes on 388 Posts
if they want a different layout / smaller bath or some other reason to not use those 3 veritcal pipes, they could either dig up the floor for new pipes
Yes, the concrete chipped out and dug out, then the pipes can be relocated. There's no real way to build up the floor and run the pipes under the floor. In theory, it might be possible, but you run into different issues, and in the end, the cost will probably be similar.

Note that the sump pit also probably needs a macerating pump installed. It's probably empty now.
 
  #8  
Old 06-26-24, 03:06 PM
E
Member
Thread Starter
Join Date: Mar 2019
Location: USA
Posts: 298
Received 1 Upvote on 1 Post
Zorfdt Thanks! And build up the floor - I was thinking framing out with wood.. Yeah, you'd have to step up from the rest of the basement into the bathroom. Just thinking out load if they want to make the bathroom smaller / put things in different places in the bathroom vs. where they are roughed out.

And a macerating pump.... pretty reliable / long life product in an infrequently used situation? Seems like something they won't want to have to handle much : )
 
  #9  
Old 06-27-24, 04:48 AM
P
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 28,367
Received 2,323 Upvotes on 2,066 Posts
Like anything mechanical, a pump can fail. I install a separate high level alarm in the sump as a warning for when it gets too full. And, since it's electrically powered that bathroom should NOT be used at all when the power is out.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: