Dive into the 2024 Massachusetts Plumbers Journeyman Challenge – Master Your Pipes and Make Waves!

The correct choice is six inches. When compacting and backfilling around a pipe, it is essential to ensure that the backfill material extends at least six inches above the crown of the pipe. This practice helps to provide adequate support and protection for the pipe, reducing the risk of damage from soil settling or other external pressures. Having this minimum amount of backfill ensures that the pipe is securely encased, which contributes to the overall stability and integrity of the installation. This recommendation is based on industry standards that emphasize the importance of proper installation techniques to prevent future repair needs and maintain the performance of the piping system.