Hand pumps serve as the heart of the entire suburban water supply system. That is why it is worth considering their main characteristics.
Hand pumps at the moment can be of different types and models, and the choice will depend on what they are for: for water supply, circulation, drainage or others. The equipment of the first type can be very diverse, and this is not accidental. Each of them should work in such a way as to adapt to certain conditions, that is, to a source of water, such as a well, well, pond, river, lake, pool, etc. This is due to the specific features of each individual source.
The main characteristics of any pump are pressure and capacity. Pressure means the height to which water will be supplied as much as possible. Under productivity is the volume of water pumped per unit of time. Both indicators are affected by the pressure that the pump can develop. When choosing all this must be borne in mind. It is important to consider what your water needs are for domestic use and irrigation, not forgetting the height of the room and the size of the plot. It is worth making a plan of the house and the plot with points of water intake.
Hand pumps are not always convenient, as constant monitoring of its operation is required. Usually they are supplemented by a pair of basic elements: a pressure switch and a hydraulic accumulator. As a result of this, it is possible to obtain a
pumping station operating as smoothly as possible. Since the necessary items are on sale, you can assemble it yourself.
In the case when there is no electricity, a manual water pump for giving is the only option. It weighs about 20-25 kilograms and is relatively inexpensive. Its action is based on the principle of a jack or a well crane. Of course, one cannot do without physical efforts, but they are much smaller than those required to carry water from a well in buckets. Hand pumps are capable of delivering 25-40 liters per minute, depending on how often the force is applied. Relatively inexpensive models are capable of lifting water from a depth of not more than 7 meters. More expensive specimens will allow working with sources whose depth is 15-30 meters.
If we are talking about a reservoir, the depth of which does not exceed 7-9 meters, then it is quite appropriate to use a surface pump. It is not located in water, only a hose for its intake is placed there. Such devices are relatively inexpensive, small-sized, have a small weight and a simple device, for many models do not require any complicated maintenance. Surface pumps can be centrifugal or vortex. The former are able to extract water from greater depths than the latter, but they are not able to work in shallow reservoirs. Vortex pumps are able to give a pressure of 2-4 times more with the same impeller diameter. They are much more compact, therefore several times cheaper than similar centrifugal models.
A manual garden pump should be selected carefully enough, because this device will serve for a long time, so it must be of high quality.