There are many different ways to use a 'water pressure pump' . Any water pump will build up pressure, this is the basic principle of well pumps, and similar. Most are 'used' by a pressure switch which turns the pump on when pressure decreases to a certain point.
Pump it into a storage tank and use an electric shower pump to increase pressure,Pump starts when a tap is turned on
Yes, because the water you are recirculating is already past the pressure regulator.
That would depend on friction losses and fixture unit demands
bad check valve or a leak.
You would use it to deliver a constant pressure at the shower-head, in situations where the water pressure is either low, or fluctuates.
no because a booster pump is made for higher pressure and a sump pump is made for volume so you can never have the same pressure as a booster pump.
If you mean a well tank, the water is forced in by the pump. The residual air pressure pushes the water out to the faucets.
The pressure switch is usually on the pump if it's a jet pump, or at the base of the pressure tank if a submersible pump.
The boiler feed pump pumps hot feedwater into the boiler. The boiler pressure is to high for water to flow into it by gravity, so a pump is required.
Pumps can be easily installed in outdoor water fountains. Fountains use a Powerhead pump which is available at Home Depot as well as many aquarium stores. On the pump packaging it will tell you how high the water pressure is on the pump or how high it will pump water. The pump you use needs to pump water be at least as tall as your fountain, or more is recommended. Also, professionals are available in your area to install and maintain outdoor fountains.
You have things confused. -Water pressure cannot operate a pump. - More detail needed.
Typically the water pump will make noise or show residue from leaks from the water pump bracket. You could also use a special tool that puts about 10-14psi of pressure on the cooling system and raise the car and see if it leaks from the water pump.