HSG274 Part 2 also specifies monthly calorifier flow and return checks. Define cold-storage, incoming-supply and representative-outlet activities separately under their required schedules; one tap reading cannot establish the condition of all stored and distributed water.
Use the right measurement point
Select sentinel points from the schematic and actual pipe layout, including relevant near, far and long-branch locations. Convenience of access is not a technical basis. Keep consistent references for repeat measurement.
TMVs control mixed water to reduce scalding risk. A mixed-outlet reading does not show upstream hot-water temperature. Specify the correct supply measurement while retaining the necessary scald protection.
HSE's hot and cold water guidance sets the temperature-control basis: hot storage at least 60°C, hot distribution reaching 50°C within one minute, or 55°C in healthcare, and cold water below 20°C where possible. These are system-control values, not authority to expose users to scalding water or alter valves without assessment.
Make the log useful
Record the system, point, date, method, result, relevant elapsed time and person checking. State the expected value and response route so departures can be recognised and acted on.
Repeated low temperatures on a return loop require investigation of that section. Repeating an entry monthly does not establish whether circulation, controls or changed use explain and resolve the finding.
Review after changes and failures
Reassess points and tasks after refurbishment, additional outlets, changed hours or low occupation. Follow the agreed response to failures, retaining corrective-work evidence and subsequent check results.
Frequently asked questions
Does every tap need a monthly reading?
No. The programme uses sentinel and representative points alongside other system checks. Their selection must provide meaningful coverage of the installation.
Can an automated sensor replace all manual work?
Only through an appropriately specified and verified monitoring arrangement. Sensor location matters, and automation does not replace required inspection, maintenance or response to faults.
What if a temperature check cannot be completed?
Record the reason and assign follow-up. Inaccessibility or a locked room is an unresolved task, not a satisfactory temperature result.
Related help
Coordinate Water Hygiene and Legionella and TMV Servicing and Testing. Use the Water Hygiene Checklist and Knowledge Centre to prepare the records and wider work requirements.
