A water heater pressure relief valve/pipe is guided to release hot water outside of the pan (see picture). Is this installation correct? - Home Improvement Stack Exchange
Part of Plumbing Maintenance is Checking Your Water Heater's TPR Valve
TPR Relief Valve Discharge Tube Codes & Hazards Installation, inspection, & specifications for discharge tubes on TPR valves used on boilers & water heaters
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plumbing - Why does the overflow pipe on a water heater open to the floor? - Home Improvement Stack Exchange
What are the code requirements for the discharge piping from a Temperature-Pressure Relief (TPR) valve at a water heater?
Can you terminate the TPR(Temperature Pressure Relief Valve) discharge pipe to the water heater pan | NCW Home Inspections, LLC
TPR Relief Valve Discharge Tube Codes & Hazards Installation, inspection, & specifications for discharge tubes on TPR valves used on boilers & water heaters
Re-routing discharge pipe from hot water heater's T&P relief valve - Home Improvement Stack Exchange