You walk into a job. Homeowner says the water heater is leaking. You look at it and the water is coming from the top — not the bottom, not the T&P valve. The top.
What's your first move?
Most guys jump straight to "gotta replace it." But a top leak is usually one of three things: a loose cold water inlet, a bad flex line connection, or a failed dielectric nipple. All three are fixable without swapping the whole tank.
If you diagnose before you quote, you save the homeowner $1,500 and you look like a hero. If you jump to replace, you might be swapping a perfectly good tank over a $5 part.
What's your go-to diagnosis step when you see a top leak? 👇