How my liberal plumber robbed me of my hot showers

As a follow up to my previous post...be sure to check your water heater thermostat. Make sure your temperature setting is set to the maximum.

I had the plumber out a few months ago and ever since, I've noticed the water hadn't been getting as hot as it used to. Come to find out, that idiot turned my thermostat down.

I've found that the high temperature setting allows me to take a longer shower. A buddy of mine explains that it may have something to do with hot/cold mixture at the shower valve. With a higher temperature setting, less hot water needs to mix with the cold water in order to make my shower comfortable. By using the stored hot water at a slower rate, I'm able to extend my shower a good 10 minutes.