getting rid of unused pipe

altadata

Hello
I'm a home owner and in the basement I have my washing and dryer + a plastic sink.
The used water from the washing machine is connected to the P trap of the sink .There is a vent pipe connected to the P trap.
The resulting soil ( waste ) pipe goes into the cement floor.

Now I will be moving the washing machine/dryer to another location and get rid of the plastic sink and I'd like to get rid of the pipe going into the cement floor altogether.

There is no problem to redirect the vent pipe ( I will use it for the new location ).

Question: Can I just close off /seal the pipe going into the floor that is now not used anymore?
Or should I just keep connected it to the vent pipe ( with no soil drainage purpose anymore )?

Thanks.

4just1don

reading your post title,,,I was hoping you live around the corner from me and didnt have a truck to haul off a couple loads of copper to the 'dump',,,guess not sorry d ; ~ )

Termite

The pipe very possibly serves as a vent for other fixtures. Hard to tell without seeing a schematic of how the drainage plumbing is ran in your home.

altadata

I doubt it serves as a vent ( wet vent in this case) because if it was a "wet vent", the vented fixture would have to be on the same floor( in the basement ) as per Ontario plumbing code ( "All the fixtures must be located at the same floor." ) and there is no such extra fixture in the basement.

In the basement I only have 3 waste pipes of 3" each going vertically into the floor in different corners of the basement and this sink+washing machine.

What should I use to cap it off ( is such cap sold at Home Depot )?

Tx.

altadata

Forgot to mention all pipes are plastic ( PVC ), so I'm looking for a cap method for that.

zosoplumber

well you could cut it flush with floor and get a flush clean out cap for it, it may come in handy down the road as another source for cleaning and augering the drains, if you just want to cap it off for good buy a 2" pressure cap and glue it on.