user Mr_Assault_08 asked:
Getting a new home and I noticed the water build up in the drain pan. It wasn't here when they installed it, maybe after they tested the heater or something. But I'm worried the water here will eventually (years) damage the tank. So how do I drain it??
Answer: You could just sponge it out. At the big box hardware stores, they have sponges in the tile section that would work great.
Another alternative answer: Check your pressure relief valve. It's probably blowing off. If it is, you'll want to get a water pressure gauge and check your water pressure. If it's above 85 psi you'll want a water pressure regulator at your main and an expansion tank on the cold feed to the water heater. If you get this far make sure to brace the expansion tank so it doesn't snap your water line and pump it up to match the pressure of your house. Hopefully it's just a bad relief valve. Good luck bud