Good Sam Community

Is there a way to remove the scale on the inside of my 2005 class a water heater? Draining doesn't seem to do it.Thanks,

I have a 2005 Monaco Cayman 37' with a 300 hp cummings engine. Yesterday was the first time we have encountered mountains. I was running in 5th gear at 58 mph up and down the hills on I40. I noticed it was runing hot, over 200 degrees for awhile t...