How do I use the mulching feature on the CMCMW260P1? Wilson October 03, 2020 20:01 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. Related articles What are the dimensions on the model number CMMT12035 when open? Comments 0 comments Please sign in to leave a comment.