The valve should be connected to a discharge pipe (also called a drain line) that runs down the length of the water heater tank. This pipe is responsible for routing hot water released from the …

Dec 5, 2025 · Install your water heater discharge pipe correctly. A complete guide to critical safety codes and proper installation steps.

Nov 21, 2025 · This article explains what a discharge pipe is, why it matters, the right materials and sizing, installation best practices, and routine maintenance tips to keep a water heater …

May 29, 2024 · A water heater discharge pipe is a crucial component of any water heating system. It plays a vital role in ensuring the safe and efficient operation of your water heater by …

Mar 7, 2019 · A trapped TPR dischage pipe is a common defect when a replacement water heater’s TPR valve is lower than the original one, and the installer connects to the exisitng …

Oct 9, 2024 · Understanding the function, types, location, maintenance, and troubleshooting of a water heater discharge pipe is vital for the safe and efficient operation of your water heater.

This article describes the requirements for a discharge tube or drain line on temperature & pressure relief valves used on any appliance that heats water.