A surface mounted on the shore and with a reservoir connected to an ordinary hose. Surface Pump PLUS: easy to assemble and dismantled, requiring only cleaning and lubrication of parts ejector. DISADVANTAGES: Can be used only where ground water come close to the surface. For deep wells and water wells unusable. Self-priming Surface pumps Speroni (Italy) Ideal for use in the water-supply stations and more. Surface pumps can pump water to a height of 30-50 meters (some models – and above), but suck in water from 15 to 20 meters depth they can not – is simply impossible. Meanwhile, in the suburbs is not uncommon, when the water is located precisely at such a depth below ground.
What should I do? If the water does not want sucked, because the pump from her too far, let's reduce this distance. Until when will diminish? A zero! That is, throw the pump into the water. For example, I have to testify artesian well – the depth of 18 meters. So, to get water, surface pump is not suitable. This task is quite handle a submersible pump with a capacity of 200 watts. Two hundred watts – this is quite a bit, believe me.
Submersible Pump PLUS: can be used in wells and boreholes to a depth of 40-50 meters. Not requires no special installation, does not take much space in the water works almost noiselessly. DISADVANTAGES: inconvenient to maintain, because you must remove it from the well or wells. Submersible pump hard parsed due sealed enclosure.