washing machine drain pipe

[audreyg]

I was doing some re-arranging under the bed today and I noticed the drain for the washer was broke right at the 90 degree elbow where it turns down to go under the bed floor. Not really a big deal since we don't have a washer but fumes from the grey tank could escape. I managed to cut off the remaining portion and use a 2" rubber 90 degree that fit over the 1-1/2" 90 bands. The pipe continued under the floor of the bed as flex pipe. Does anyone know where it exits in the basement and continues to the tank? Thanks.