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What are the code requirements for the discharge piping from a Temperature-Pressure Relief (TPR) valve at a water heater?
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water heater - Is this T&P relief valve discharge pipe installed correctly? - Home Improvement Stack Exchange
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plumbing - Why does the overflow pipe on a water heater open to the floor? - Home Improvement Stack Exchange
![TPR Relief Valve Discharge Tube Codes & Hazards Installation, inspection, & specifications for discharge tubes on TPR valves used on boilers & water heaters TPR Relief Valve Discharge Tube Codes & Hazards Installation, inspection, & specifications for discharge tubes on TPR valves used on boilers & water heaters](https://inspectapedia.com/plumbing/Water_Heater_Oil234-DFs.jpg)
TPR Relief Valve Discharge Tube Codes & Hazards Installation, inspection, & specifications for discharge tubes on TPR valves used on boilers & water heaters
![TPR Relief Valve Discharge Tube Codes & Hazards Installation, inspection, & specifications for discharge tubes on TPR valves used on boilers & water heaters TPR Relief Valve Discharge Tube Codes & Hazards Installation, inspection, & specifications for discharge tubes on TPR valves used on boilers & water heaters](https://inspectapedia.com/plumbing/Amer-std-water-heater-installed.jpg)