Schedule 30 Freeze Relief Kit

A Schedule 30 Freeze Relief Kit from Crawl Space DIY is a must-have solution for protecting your sump pump’s discharge line from freezing and clogging—keeping your basement dry and your pump running smoothly.

When your sump pump’s discharge line freezes or becomes clogged with debris, pressure builds up inside the pipe. When the pump activates, the sudden surge of water can cause catastrophic damage—breaking the pump, flooding your basement, or even damaging your home’s foundation. The Freeze Relief Kit prevents this by allowing excess water and pressure to escape safely, giving you critical time to address the issue before it worsens.

Designed for easy DIY installation, this kit acts as a transition piece between your above-ground 1½” PVC pipe and the buried Schedule 30 thin-wall discharge line. The included 3″–4″ adapter ensures a secure, leak-free connection, while the durable PVC construction requires no maintenance and resists corrosion. Whether you’re preparing for winter or dealing with unexpected freezing conditions, this kit provides reliable protection for your sump pump system.