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 needed for: for water supply, circulation, drainage or others. Equipment of the first type can be very diverse, and this is not accidental. Each of them must work in such a way as to adapt to certain conditions, that is, to a water source, such as a well, well, pond, river, lake, pool, etc. This is due to the specific characteristics of each individual source.
The main characteristics of any pump are pressure and performance. The pressure is the height to which the maximum water will be supplied. Under productivity - the volume of water pumped over per unit of time. Both indicators are affected by the pressure that the pump is able to develop. When choosing, all this must be borne in mind. It is important to consider what you havewater needs for domestic needs and irrigation, not forgetting the height of the room and the size of the site. It is worth drawing up a plan of the house and plot with water intake points.
Hand pumps are not always convenient, as constant monitoring of its operation is required. Usually they are supplemented with a couple of basic elements: a pressure switch and a hydraulic accumulator. As a result, it is possible to obtain a pumping station that works as smoothly as possible. Since the necessary items are on sale, you can assemble it yourself.
When there is no electricity, a manual water pump for summer cottages 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 effort, but they are much less than what is required to carry water from a well in buckets. Hand pumps are capable of delivering 25-40 liters per minute, depending on how often efforts will be made. Relatively inexpensive models are capable of lifting water from a depth of no more than 7 meters. More expensive specimens will allow you to work 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 the water, only a hose is placed there for its intake. Such devices are relatively inexpensive, small-sized, light in weight and simple in design; many models do not require any complex maintenance. Surfacepumps can be centrifugal and 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 capable of delivering 2-4 times more head with the same impeller diameter. They are much more compact, therefore several times cheaper than similar centrifugal models.
A hand garden pump should be chosen carefully enough, because this device will last a long time, so it must be of high quality.
