Hot water shall be connected to which side of the fixture?

The correct answer is that hot water shall be connected to the left side of the fixture. This convention is widely recognized and helps ensure consistency in plumbing installations. By standardizing the placement of hot and cold water connections, it minimizes the risk of confusion for users and makes it easier for maintenance personnel to understand the plumbing layout.

This practice is particularly important in residential and commercial plumbing systems, where fixtures may include sinks, bathtubs, and showers. By ensuring that the hot water line is consistently on the left, users can expect a predictable experience when using water fixtures.

Understanding this connection is essential for compliance with plumbing codes, which aim to promote safety and proper function in plumbing systems, as well as to prevent issues such as scalding from hot water mistakenly connected to the wrong side.