Something appears wonky with our hot water tank, where it seems to have lost capacity for some reason. It's a 60 gallon Rheem tank that was just put in last year, and until now it's been great. But over the last couple of weeks I've noticed that our hot water is running out a lot faster than it should. Normally we could have 2 people take showers back to back and still have plenty of hot water left, but now it barely seems enough for a single shower. Temperature is fine, and if I tweak the thermostat on it I hear the burner come on immediately so everything seems to be in working order. Any ideas?
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