Can a macerating toilet drain into this pipe?

[eminn3m]

I purchased a sanicompact that grinds the waist before flushing. Can it drain into this pipe that the washer drains into?

The instructions say:
>This unit must discharge into a
minimum 3-inch sanitary drainage pipe. All discharge pipe work must be
connected to the soil stack by an
appropriate and approved TY
connection. Please note: the use of a
Saddle Clip may be prohibited in your
area.

 

[Execut1ve]

no. That is a standpipe for draining a washing machine. And it is also not 3"

 

[eminn3m]

Do you know what could happen if it's used anyway? Would I have to repipe the house to make it work?

 

[Execut1ve]

do not attempt to drain the toilet into that pipe.

you don't need to repipe the house to make sure the toilet drains into a 3" pipe. are you replacing an existing toilet with this new one? or are you planning to put this toilet in a place where no toilet is currently?

 

[eminn3m]

It's a new toilet where there is none currently

 

[Execut1ve]

you will need to run a new 3" pipe from the soil stack to the new toilet location and install a toilet flange. you will also need to vent the drain line properly.

if you can provide photos and/or drawings someone more knowledgeable may be able to advise you further. otherwise i would hire a plumber

 

[Caduceus]

The tee for the washing machine looks like it down sizes after the laundry stand pipe, which is already a clogging and flow hazard. If you were to repipe after the 2" trap and put in a 2" drain continuing to the final drain connection, you should be okay connecting further down from the tee. You do plan on connecting to a drainage pipe somewhere, right? Don't let it discharge into a floor drain.
The manufacturer's instructions on the link you provided should also give you some added insight.
I personally would look for another alternative to a macerating toilet, but you've made the purchase and will be determined to install it.