A calorie is a measure of energy, just as a pound is a measure of weight and a mile is a measure of distance. So the amount of energy you exert in doing an activity is measured by the calories burn rate.
A water pressure regulator is a plumbing valve that reduces the water pressure coming from the main water line into the house.o determine if you need a water pressure regulator test the water pressure of the main water supply to your house. You can buy a pressure gauge for a local hardware or home improvement store.
The water delivered to your home should flow at a pressure between 35 and 80 psi (pounds per square inch). Your local water utility uses regulators to deliver your water to you at between 50 and 70 psi, but a problem in your plumbing system could cause this pressure to change once it reaches your home. Regulator valves help prevent high water pressure, but these can fail, and this puts a strain on your plumbing and appliances.