Hello- I have an old water heater and when I take a shower I have 2,3minutes of hot/warm water before it gradually gets cold. I have turned the temp gauge up is there anything else I can do. Could it be rust deposits?:confused: :(

Check if you have plenty of hot water from the drain. The dip tube is probably broken off on the inside of the hot water heater on the cold side.

What's happening is that your draining water off the top of the heater and that's where the cold is coming in. It doesn't have time to mix and therefore it's cold.

What's supposed to happen is that you take water from the top of the tank and you fill the heater from the bottom.

If the water heater is old, 10 yrs or so, replace it. The dip tube is replaceable.

Maybe one of the elements is burned out, assuming its electric.