TPR Relief Valve Discharge Tube Codes & Hazards Installation, inspection, & specifications for discharge tubes on TPR valves used on boilers & water heaters
What are the code requirements for the discharge piping from a Temperature-Pressure Relief (TPR) valve at a water heater?
How to Drain a Water Heater | HGTV
TPRV Drain Line-Many bends - Plumbing Inspections - InterNACHI®️ Forum