I just moved into a house that was built in 1958. I'd like to install a full bath in the basement, but it was not plumbed for a bath. I'm handy with sweating copper pipe joints, so the hot/cold water supply lines won't really be a problem. However, the waste lines are where I do have a few questions. The area I'd like to put the bath is within 10 feet of where the cast-iron pipe leads down into the cement floor at the back of the basement (and presumably underneath the floor towards the front of the house).

1) If I had a plumber come in and complete the rough-in, including breaking up the cement, plumbing all of the lines and connecting it to the main waste line, and pouring new cement, how much would the complete job generally be?

2) What are the main costs, if this job was broken down into components, and is it something I could do myself?

3) What factors are at play that could increase or decrease the price of the job?

Thanks!

-Dave

Hi Dave,

All your questions deal with cost and it's impossible to give, even a ballpark figure, uinless you're on site to figure materials and local labor costs. I can tell you that your tub will have to be vented. You can not connect direct to the sewer without a vent. Good luck, Tom

Dave,

Before you start digging up your basement. Look at Upflush toilets. The Big Box stores sell them now. We've installed a number of them with great success. Though it will require building a landing for a Tub or Shower.

While a up-flush toilet would get you away from breaking up the floor in addition to platforming the tub/shower you will still have to vent the group.
Regards, Tom

Thanks for all of the replies, I appreciate it!

In venting the group, does it need its own vent all the way up to the roof of the 2nd floor, or can I tie it into the vent of the bathroom that is directly above (on the first floor)?

Quote:

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Originally Posted by dmt5u

Thanks for all of the replies, I appreciate it!

In venting the group, does it need its own vent all the way up to the roof of the 2nd floor, or can I tie it into the vent of the bathroom that is directly above (on the first floor)?

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If the vent that you wish to revent back into has nothing above it you may revent back at least 6 inches over the flood rim of the bathroom lavatory.
Good luck, tom