Step 3 · Clean and Prepare Hub Interior

This is the step people usually slow down on. Go finger-tight first, then a quarter turn. No rush — replay the clip whenever it helps.

Once the bulk of the lead and oakum is removed, a thorough cleaning is necessary. Use a wire brush to scour the inside surface of the cast iron hub. For best results, use a wire cup brush attached to a power drill. This will efficiently remove any remaining lead fragments, rust, and debris. The goal is to create a clean, smooth surface for the new gasket to seal against. After brushing, wipe the inside of the hub clean with a dry rag.