A submersible pump pushes water to the surface by converting rotary energy into kinetic energy into pressure energy. This is done by the water being pulled into the pump: first in the intake, where the rotation of the impeller pushes the water through the diffuser. Pumps that are designed to be submersible are placed within the reservoir of water that needs pumping out. As such, they are often used for drainage in floods, sewerage pumping, emptying ponds or even as pond filters. Filtration pumps found inside fish tanks are a type of submersible pump.
The submersible pump saves energy because it makes pressure 30% faster than the jet pump. The submersible pump is also saving energy by not having to fight gravity and atmospheric pressure like the jet pump does (and its not so quiet doing it ). This fight can create a high elevation between pump and water surface.
Some types of submersible pumps are designed to run dry indefinitely others such as submersible well pumps with plastic impellers can melt and seize up in under 15 seconds. You can run your deep well submersible pump for as long as you want ……. … In short as long as you have water , the pump is supposed to run without breaking a sweat. NB : IF YOU RUN THE MOTOR WITHOUT WATER , The impeller, diffuser, shaft seal or motor could be ruined.
Many submersible well pumps are capable of pumping to high enough pressure to damage the plumbing system or burst a water tank. That’s why water pressure tanks need a pressure relief valve installed. . … But still a bad check valve or foot valve means you may lose building pressure between well pump cycles.
You will also need to determine the best pump size, depending on your water home needs. Pumps are rated in GPM (gallons per minute). A typical 3- to 4-bedroom home requires 8-12 GPM.