Diagnose Cracked P-Trap

What happens here

The video starts by showing an outdoor shot of a house foundation partially covered in snow, with a wooden board indicating an access point. The presenter identifies a "cracked pipe underneath the deck" and then shows a close-up of a white PVC P-trap with a visible crack, stating that "cold weather in these parts caused this PVC to crack." This initial step is about confirming the problem and understanding its cause.

Goal: Identify the cracked P-trap and its cause.