homewrecker
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Hello and Happy New Year!
I'd like to install a washing machine drain on the second floor of my home. The 1 1/2" drain line from the second floor bathroom sink/tub enters the main stack immediately below the proposed location for my washer. I'd like to enlarge this line and connect my washer drain to it, but the pipe is on a curve and space in the floor cavity is tight. I'd like anyone's opinion as to whether a proper washer drain installation is possible here.
In the attached diagram, I've drawn what exists and a proposal for what I think would be needed -- if it's allowed by code and common sense! The 2" P-trap for the washer standpipe would connect to the san-tee inlet shown in the second diagram.
If this should be possible, I have two other questions:
1. I suspect that the san-tee cannot be placed at an angle, only vertical. Would a Wye with a 45 degree elbow on the inlet be correct? I'd need the 45 elbow in order to make the trap plumb.
2. Is a vent needed here, given the immediate proximity to the main waste stack?
3. When the P-trap is attached (it will come outward toward us in the perspective in the diagram), it will not quite reach the wall cavity on the second floor above, where I hope to place my standpipe. Can the vertical standpipe make a slight bend with two 45 degree elbows (or sweeps, if there's room) above the trap, or must it be a straight vertical run from the top of the standpipe to the trap?
Thanks very much for your advice!
I'd like to install a washing machine drain on the second floor of my home. The 1 1/2" drain line from the second floor bathroom sink/tub enters the main stack immediately below the proposed location for my washer. I'd like to enlarge this line and connect my washer drain to it, but the pipe is on a curve and space in the floor cavity is tight. I'd like anyone's opinion as to whether a proper washer drain installation is possible here.
In the attached diagram, I've drawn what exists and a proposal for what I think would be needed -- if it's allowed by code and common sense! The 2" P-trap for the washer standpipe would connect to the san-tee inlet shown in the second diagram.
If this should be possible, I have two other questions:
1. I suspect that the san-tee cannot be placed at an angle, only vertical. Would a Wye with a 45 degree elbow on the inlet be correct? I'd need the 45 elbow in order to make the trap plumb.
2. Is a vent needed here, given the immediate proximity to the main waste stack?
3. When the P-trap is attached (it will come outward toward us in the perspective in the diagram), it will not quite reach the wall cavity on the second floor above, where I hope to place my standpipe. Can the vertical standpipe make a slight bend with two 45 degree elbows (or sweeps, if there's room) above the trap, or must it be a straight vertical run from the top of the standpipe to the trap?
Thanks very much for your advice!
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