re: Water heater pan has water in it

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Do hot water heater pans work?
When installed correctly, water heater pans are effective at collecting water from a slow leak from a water heater to prevent water damage. Water heater pans can’t stop severe water heater failure. A pan that does not have a drain line, can’t expel the water if collects. It’s crucial for a drain pan to have a drain fitting with a drain pipe that goes outside or a nearby floor drain.