The practice when the only way to water the vegetable garden and the lawn was a watering can, and the water had to be carried in buckets, is already a thing of the past. Now there are many devices in the arsenal of the gardener and the gardener, which have made his life easier by reducing the level of unnecessary physical exertion. Great benefit comes from the usual gasoline motor pump. It helps to quickly solve the problem of water supply to the site and the rapid removal of dirty slurry after heavy rainfall or flooding.
Package and principle of operation
This unit is a self-priming water pump. It is powered by a gasoline-powered engine. It is designed for efficient water supply, irrigation or pumping applications. Some models can be used for firefighting applications.
The gasoline-powered equipment is not too heavy and can be easily carried around the dacha area. This mobility and maneuverability allows not only to bring the device to its destination by car, but also to quickly solve several tasks on extensive dacha plots.
The following main components are distinguished in the design of the equipment:
- Internal combustion engine;
- air type filter;
- fuel tank;
- pumping system.
The liquid first enters the intake hose for the motor pump. As it moves along it, the effect of centrifugal force acts on the water, whereby it is directed inside the equipment itself. After that, the composition is pushed out of the branch pipe.
Features of device selection
If you have set yourself the question of how to choose a motor pump with the best parameters of action, it is necessary to consider the most important parameters.
First, you should calculate the height of the liquid supply. To do this you need to know what is the distance between the intake point and the point where the apparatus is located.
Remember, lifting a fraction 1 m upward corresponds to moving it horizontally 10 m. The suction depth can vary between 7 and 9 m.
Secondly, it is advisable to evaluate the presence and quality of filters on the suction hose. This will determine the durability of the unit without breakdowns and the frequency of routine maintenance.
Thirdly, the design of the pumping system itself is also important. According to this parameter, the devices can be divided into two large groups:
The first version has a special wheel, which is necessary for pumping. The diaphragm type, on the other hand, is focused on extracting thicker fractions, which contain insignificant amounts of moisture.
It is also important that this equipment has a completely different purpose:
- The transmission of contaminant-free water;
- pumping or conveying a clean liquid or a lightly contaminated liquid;
- redistributing dirty and viscous mixture.
Choosing the most suitable model, it is necessary to evaluate the most important parameter – the capacity of the motor pump. It is estimated in the volume of liquid pumped by the pump per unit time. The target is taken into account here:
- For conveniently watering the vegetable garden 130-150 l/min;
- for a full water supply to the house will need more power – up to 1.7 L/min;
- Providing a pool fill – 1,000 L/min;
- Dewatering of a heavily waterlogged area – 1.2 thousand l/min.
Remember, the required efficiency is determined not only by the purpose of the application, but also by the parameters of the pipes, elevation, number of bends and connecting blocks.
Features of a gasoline-powered engine
A gasoline engine gives equipment high power, mobility and maneuverability. Such systems are easy to operate, give high performance at an affordable price for customers. But there are certain maintenance requirements, such as the need for constant refueling.
All available gasoline-powered units can be divided into two groups:
- Lightweight, low horsepower units. They are equipped with 2-5 hp two-stroke engines with 25-50 cc displacement.
- Four-stroke “engines” with a displacement of 100-600 cm3. They have the best performance to cost ratio in terms of efficiency.
Two-stroke engine model
For use at the cottage, the compact two-stroke unit is considered the best option. The small performance version, lightness and mobility allow you to carry it around the site.
And it can be done by one person without assistance. It also fits in the trunk when transporting. You can really appreciate these advantages from the photo of the gasoline motor pump.
An example of such equipment is the Champion GP26-II brand with an engine capacity of 33 cm3. Such parameters allow pumping from a depth of up to 8 m with a capacity of 7.2 thousand liters per hour. The DDE PN25-II model is equipped with a 53 cm3 “engine” and features 2 horsepower. With a product weight of 7-7.3 kg, the considered machines are very efficient in operation.
Four-stroke engine type
This design is larger, has excellent performance. Due to the high power of the “engine” it is reasonable to use for large amounts of work with a high degree of load.
In dacha areas, such models are often used when supplying fluids over long distances. The advantage is technical durability and no need to prepare gasoline-oil mixtures.
Popular brands are Koshin, Robin-Subaru, Hammer. For example, Hammer MTP 4000 with a “engine” in 4 tacts on 5.5 hp provides a lift of 36 thousand liters of water on 8 m for an hour of work. The unit weighs 25 kg, which is not so much compared to counterparts. Robin-Subaru PTG208 H has a capacity of 3.5 “horsepower” with a capacity of 24 thousand liters per hour.
Main equipment types.
It is necessary to choose a pumping system depending on the purpose and purpose of use. So you can optimally solve the problem at the cottage or country house.
Clean water pumping system
A lightweight and compact model with a two-stroke engine is suitable for this purpose. It is used for filling the pool, watering the vegetable garden or watering the house. The capacity is not too large, usually not more than 6-8 m3 per hour.
The water pump is equipped with special filters that prevent the penetration of particles larger than 5 mm. An important advantage is the maximum mobility due to its low weight and compactness. These maneuverable pumping devices can easily fit in an ordinary backpack.
These units are successfully used to quickly extinguish fires and pump water over long distances. The four-stroke engine gives a high capacity of 400-600 l/min. with a liquid lift of 60 m.
This option is especially advantageous if there is no centralized water supply on your property, and the natural reservoir is at a great distance. In terms of weight, high-pressure devices are not much heavier than conventional pumping structures.
Contaminated fluid units
A dirt pump is a powerful and high-performance unit. You can pump up to 2,000 liters of liquid per minute, lifting it up to a height of 35 m. This design is equipped with inlet/outlet spigots with a diameter of 50-100 mm. The equipment is effective for pumping dirty mixture from flooded areas, cleaning septic tanks, wells.
It is possible to pass through the filters particles of 25-30 mm in size. Such water may contain elements of lime, sand, clay, crushed stone, silt in high concentration.
To clean the filters, access inside is as easy as possible. The body of the motor pump is convenient for maintenance and repair. Among the popular brands should be noted ROBIN-SUBARU PTG310ST and SKAT MPB-1300.
Choosing a gasoline-powered motor pump, study the technical specifications in detail. But it is equally important to correctly calculate the conditions of its actual use. It is reasonable to estimate the length and height of the flow. After that, we must compare these calculated figures with the dependence of the productivity of their changes. This will be the real basis for the correct selection of the model.
Photo of a gasoline motor pump