A shampoo sink in a beauty shop has a fixture unit rating of ______________.

The fixture unit rating for a shampoo sink in a beauty shop is correctly identified as 2. This rating is based on the expected demand for water and the associated drainage capacity of the fixture. In plumbing codes, fixture units are a standardized way to assess the load that various plumbing fixtures place on a system, taking into account factors such as frequency of use and flow rate.

A shampoo sink is designed for regular use and typically has a demand that aligns with the rating of 2 fixture units, which reflects its need for water supply and drainage during hair washing activities. This rating helps plumbers and designers ensure that the plumbing system can handle the capacity and load of multiple fixtures operating simultaneously, especially in commercial settings like beauty shops.

Understanding fixture unit ratings is crucial for planning plumbing systems, as they help avoid issues related to under-sizing pipes or drainage systems, ensuring sufficient flow and proper waste removal. This foundational knowledge aids in maintaining effective plumbing services in beauty and grooming establishments.