How do I use the mulching feature on the CMCMW260P1? Wilson February 26, 2021 20:21 Updated When you do not have the bag attached nor the side discharge chute attached the mower is in mulching mode. The mulch plug is built into the back door/flap of the mower. There are not any further steps needed for it to be in mulch mode. Comments 0 comments Please sign in to leave a comment.