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View Full Version : 'How To' on putting bath below Main line?


Lookingforhelp
Jun 15, 2006, 03:15 PM
Hello all...

I just bought an old house and completely gutted the basement. I am looking to put a bar and sink on one wall and a 1/2 bath on another. The problem? The main PVC waste line comes off what appears to be a 3" column and gradually slopes downward until exiting the house at a little above knee height. From there I can only assume it goes to the sewer, as I live in the big city. After spending hours and hours trying to think of a solution, I'm beat. How am I suppose to make this bar sink and 1/2 bath drain... I know it can't go uphill to get to the line... or can it somehow? And due to the low ceiling, I can't raise the floor level either! What can I do to make this happen? Please help...

Doc

letmetellu
Jun 15, 2006, 09:03 PM
The only way I can think of to solve you problem is to put a sump pump in the floor of your basement. You would plumb your bath and bar sink just as you would regularly and you would run it in to a hole in the floor of the basememt. This hole consist of a tank with a pump in it and a floating switch that turns the motor on and off. You would discharge the pump water into the PVC sewer line you mentioned earlier. You would have to be careful about smell, they are completely sealed but you do have to change gaskets it you ever have to change the motor or switch.

speedball1
Jun 16, 2006, 09:55 AM
Letmetellu was right on target when he advised you that a holding tank and grinder pump was about the only way to drain your fixtures. You're going to have to jackhammer up the floor, install a holding tank, grinder pump and all the drainage and run vents on all fixtures including the holding tank. Are you prepared to do all that? This is major surgery and unless you have considerable plumbing skills will be almost impossible to achieve. I'm not attempting to discourage you, just pointing out facts. If you still wish to continue we will help all we can. Good luck, Tom

Lookingforhelp
Jun 17, 2006, 08:00 AM
Thanks so much to both of you for responding! To answer your question speedball, no, I am really not prepared to do THAT type of work myself. What do you think may be a 'reasonable guestimate' might be for something like that? $500, $1000, $2000? More? Thanks again... I really appreciate it!

speedball1
Jun 17, 2006, 10:58 AM
Thanks so much to both of you for responding! To answer your question speedball, no, I am really not prepared to do THAT type of work myself. What do you think may be a 'reasonable guestimate' might be for something like that? $500, $1000, $2000? More? Thanks again... I really appreciate it!

It's almost impossible to give a estimate without being there. Too many variables, union labor, materials etc. You can help keep cost down by doing some of the labor work yourself. However, I can give you a idea of how much the holding tank and pump system will cost. Click on; http://www.plumbingsupply.com/sewage.html Get three estimates before you let the job out. Good luck, Tom