...specialized device that moves substances by applying physical actions to them. There is a great number of various pump types. The construction of a pump is defined by its sphere of applications, and such devices are often used not only in plumbing, but also in HVAC/R, construction, laboratories, oil & gas refining, and many more, or can be utilized as a hand tool for multiple purposes around the house. A specific type of pumps that is used in plumbing is called submersible pump. The name of this device represents the working principle - it has to be fully submerged in the liquid that you desire to pump. Its main functional distinction is that it pushes the liquid, unlike all other types that have to pull it first and then redistribute it among pipes and tubes. This technique has its benefits - the cavitations, created by regular pumps, do not appear in submersible pumps. MegaDepot offers a great selection of submersible and non-submersible pumps that may be used in various plumbing installations. Shop for the best with MegaDepot.