10/16/2026
Ever notice that little capped pipe sticking down near your water heater or furnace gas line? That's a gas drip leg (also called a sediment trap), and it has an important job. Tom explains:
🔹 What it does: As gas flows toward your appliance, any debris, rust, scale, or moisture in the line drops down into the drip leg instead of getting pushed into the appliance.
🔹 Why it matters: That gunk can clog or damage the gas valve and burner, leading to poor performance, repairs, or an appliance that won't light.
🔹 Is it required? Code requires one on most gas appliances, like water heaters and furnaces. If yours is missing, it's something worth fixing.
A small piece of pipe that protects some expensive equipment. If you're not sure whether your appliances have one, give us a call!