An automatic clothes washer trap shall have a vent located with a developed length not greater than what?

The correct answer is based on plumbing codes and practices concerning the installation of vent systems for automatic clothes washer traps. Proper venting is essential for maintaining the function of drainage systems by preventing siphonage and ensuring that air can enter the system as water is drained.

For automatic clothes washers, the vent must be positioned within a specific distance from the trap to ensure efficient drainage and to minimize the chances of air locks or other drainage issues. A developed length of no greater than 5 feet is specified to allow for an effective vent that can provide the necessary air flow.

This requirement helps to maintain the trap's water seal, prevents foul odors from the sewer from entering the living space, and ensures that the washer drains efficiently without causing backups or slow draining issues. When the vent is installed correctly within this distance, it supports proper drainage and contributes to the overall efficiency of the plumbing system.

The other options may not meet the needed criteria for effective venting and drainage, hence they do not align with the established plumbing standards.