Yikes, when that Poly goes (and it will) this water heater issue will seem like a cup of spilled milk. When was that house built? Were you a party to the class action or the previous owner?
I am on with Lowes trying to get the refund... I need to check with Home Depot...
20 years old. The class action required that you had leaks. We tried but got zip because we never had a leak... What a mess