If you are on city water, there will be a Pressure Reduction Valve where the water pipe enters the house. This is a bell shaped fitting with an adjuster nut on top. Loosen the locknut (top one ) and turn the lower nut anti-clockwise to reduce pressure, then lock it again.
- NOTE - some PRV's will go up in pressure when they get old, and are impossible to reduce any more. In this case you need to turn OFF the water outside and fit a new PRV. They cost around 40-60 depending where you buy them.
House is not that blessed. House is so much more officiated
There is lower air pressure.
Install a pressure reducing valve
Conduct the experiment is a pressure vessel where the pressure is maintained at a point lower than normal.
Pure water, at normal atmospheric pressure freezes at 0 deg C. If the pressure is greater than normal atmospheric pressure (760mm of Hg) or if the water contains dissolved substances, its freezing point will be below 0 deg C.
in Lower pressure water does not have to get as hot to boil
At normal atmospheric pressure, it is 100 deg C. However, water will evaporate at a much lower temperature.
For normal usage, no, not necessary. Higher pressure puts added strain on fixture water piping.
It is a temperature that is slightly lower than the freezing point of pure water at normal pressure.
Pure water, at normal pressure will freeze.
House water pressure should be around 50-60 psi.
Water vapors begin to condense when T drops below 100 degree Celsius. This is true under the normal conditions (sea level atmospheric pressure). On higher altitudes, there pressure is lower, vaporization/condensation temperature will be lower.
you lower its boiling point.