Two circuits in one conduit
I need to send two circuits to the far end of my shop. One a 220 and one a 110.
Can I send them both through one conduit?
I would guess that the 220 would have a black and red hot and a green ground.
Can I also pull through a white and some other alternative color for the 110? Ground the 110 to the metal conduit?
Or is there some other way to do this, like using one of the wires to feed both the 110 and 220?