Final answer:
An indirect waste pipe for a bed pan steamer should have a trap seal of not less than 4 inches.
Step-by-step explanation:
The question pertains to the specifications for an indirect waste pipe connected to a bed pan steamer. According to standard plumbing codes and practices, the trap seal depth for an indirect waste pipe is a vital aspect for preventing the passage of gases and maintaining proper sanitary conditions. The typical required minimum trap seal depth is not explicitly provided in the context, but based on similar applications and common plumbing standards, a 2-inch trap seal is often considered the minimum acceptable depth to prevent sewer gases from entering through a drain. However, it is always essential to refer to the specific local plumbing codes for such requirements as they can vary by jurisdiction.
The typical required minimum trap seal depth for an indirect waste pipe, such as one connected to a bed pan steamer, is often 2 inches to prevent sewer gases from entering through a drain, but local codes should be consulted for exact specifications.