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What is a sentinel outlet?
What are Sentinel outlets & why are they important for water testing?
Are all water outlets Sentinel?
Do non circulating systems require sentinel points?
Why are Sentinel taps important?
Why do hot water systems have different sentinel points?
A sentinel water outlet is one that has been selected to gauge the temperature of the water flowing through it. Not all water outlets or taps qualify as sentinel outlets – only those that are closest to and furthest away from the water storage tank are confirmed as being sentinel water outlets.
In the new guidance the HSE re-defined these ‘sentinels points’ as: “…the far sentinels are the return legs at a point towards the end of the recirculating loop”. Thus encouraging testing at the true furthest point of the hot water system.
A sentinel outlet is a water outlet which has been hand-picked to monitor the temperatures as water flow passes through it; with a view to determine the risks most closely associated with the presence of Legionella bacteria.
In the UK checking and regularly monitoring the water temperature at hot water sentinel taps and outlets to ensure your water systems achieve a temperature of at least 50°C (55°C in healthcare) is an important legionella risk management task.
Circulating systems require the identification of monitoring points for return legs of principal loops (also considered sentinel points) to provide ‘monthly’ assurances that hot water (>50 within non-health estates and >55°C within health estates) is achieved within x1 minute of opening a given outlet.
Sentinel outlets - hot water video. Checking water temperature at a hot water sentinel outlet to ensure a temperature of at least 50°C.
- 12 sec
Apr 29, 2016 · Large and complex hot and cold water systems will require more than a nearest and furthest sentinel point temperature check. Circulating return legs and long runs will also require monthly testing from pipework or sample points.
