Basement Floor Drain Confirmation

I am of the understanding that sinks and washers cannot drain to the basement floor drain.

Is this correct? Thanks all.

A residential sink must connect directly into the sanitary drain system. A washer may discharge into the sink or be connected to the sanitary drain via a trapped standpipe. Do you have a picture that you can post?


Exactly… …


no need for a picture. Thanks for confirming that my thinking was correct.


In some areas the washer can to greywater.
The sink, no. Must connect directly to the sanitary system with a trap.
The washer if going to the sanitary system must have an air gap and a trap.

1 Like