What is the general function of a pressure gauge in plumbing?

The primary function of a pressure gauge in plumbing is to indicate water pressure within a system. This instrument provides critical information about the pressure levels of water in pipes, which is essential for ensuring that the plumbing system operates efficiently and safely. Monitoring water pressure helps in diagnosing potential issues, such as leaks or blockages, and ensures that fixtures and appliances receive the correct pressure for optimal performance.

By knowing the water pressure, plumbers can make informed decisions about repairs, replacements, or adjustments needed in the plumbing system. Without a pressure gauge, it would be challenging to assess whether the system is functioning within the required parameters, leading to potential damage or inefficient operation.