Whenever we have any of our outside hoses on and connected to a hand activated sprayer, etc., inside the house you hear a very loud, constant whining, which appears to be a result of the pressure build up. Any way to deal with this?
Lower the volume going to this sprayer. What your doing is increasing the velocity of the water going through a small orifice. In other words the out side hose bibb (valve) should be a globe type so you can throttle down how much water your using.
By lowering this valve your going to reduce the volume THIS will then lower the velocity and lower the speed (FPS) of the water THUS reducing the noise level.