Not much info. Why is there increased pressure?? Well, city water, pressure regulator in the system?? Pressure does not have anything to do with temp. A thermostat only looks at temp. But pressure can definitely affect temps at pressure balanced fixtures, like showers.
All day or just for a minute when the first person turned on a faucet or shower?
(One morning on WRKO Radio) The tub's not clean! Let's remodel the bathroom.
(One afternoon on WRKO Radio) It's time for an oil change. I'm going to trade in the car for next year's model.