Create a water-use map
Separate cooling and utility water from water used as an ingredient or in direct contact with product. Identify where treatment changes the water and where a residual reading would affect a decision. This keeps a successful utility-water installation from becoming an unsupported recommendation for every process in the plant.
Match the measurement to the disinfectant
Record whether the incoming supply uses free chlorine or chloramine and whether the plant adds another treatment chemical. Ask for the exact measurement species supported by the proposed configuration. Do not assume a chlorine sensor measures peracetic acid, ozone or all blended sanitizers.
Build a traceable verification routine
Give each point a clear name, assign a person to review trends and define when reference checks are required. Include sampling access and service isolation in the installation review. Evaluate expected production changes and cleaning exposure before deciding whether equipment can remain in place throughout an operating cycle.
