Gas appliances like water heaters and furnaces rely on clean, unobstructed gas flow to operate safely and efficiently. One minor but essential component designed to protect these appliances is the gas sediment trap . During Las Vegas home inspections , missing or improperly installed sediment traps are a common observation — especially in older homes or systems that have been modified over time. What Is a Gas Sediment Trap? A sediment trap (sometimes called a dirt leg or dri