– Which motor pump is best suited to your needs

When you have to buy a motor pump and you have no experience in the field, you may find yourself lost in the face of the different types and technologies on the market. For this reason it is essential to evaluate, before making any type of purchase, what your needs are, or why you buy the motor pump.

This tool, in fact, can be used for different purposes that can be divided into two main groups, namely the treatment of clear water or dark water.

When we talk about clear waters we mean the clean water, ie those for irrigation or for filling tanks. The dark waters are instead characterized by the fact that they contain mud and corpuscular residues more or less concentrated.

The difference between the two types of motor-pumps is very marked, since the motor pumps for treating dark water as well as providing a different technology, must be characterized by greater strength and amplitude to avoid clogging caused by residues.

Once the model has been evaluated based on the type of water to be treated, it is essential to check the various technical parameters, in particular the flow rate, the head and the delivery pressure. The first indicates the quantity of cubic meters that can pass per unit of time through the section of the pump. Prevalence is instead a parameter that allows us to understand the maximum height difference that the motor pump can reach when it is activated.

For example, if you need a tool that can bring water to the first or second floor of a building, you will need to evaluate a prevalence of at least ten meters (also depending on the positioning of the motor pump and the height of the building itself). The delivery pressure indicates the power with which the water leaving the pump is pushed.

The size of the motor pump is another factor to consider. The pumps can in fact be divided into portable or fixed. The former, in addition to being smaller in size, are usually characterized by an internal combustion engine operation, which allows correct operation without having to proceed with the connection to the mains.

The portable models are very practical to use and to preserve: usually they have a low weight, especially when it comes to models for clear water. The construction materials of the pump body are also fundamental. Usually the best models are made in cast iron or stainless steel. The difference between the two materials does not create large variations in the operating modes that depend mainly on the mechanics and the technology used.

However they can have a very high importance depending on the type of use and, above all, of the how to store the pump. If in fact you do not have a protected and dry place where you can keep the motor pump when it is not used, you will necessarily have to opt for a stainless steel model. Conversely, if you have the possibility to put the pump in a dry environment after each use, you can opt for the cast iron model.

Finally, of course, the cost will have to be taken into account. The different motor-pump models, whether they are for clear or dark water, fixed or portable, can have different costs that vary according to the parameters previously reported (flow rate, head and delivery pressure) and to the brand. Selecting one type of pump or another may be a choice that also depends on the use made of the instrument.

Those who use it occasionally can choose to buy a medium-low cost model, while those who need it most often and make frequent use of it could find greater advantage in buying a high-end model, that is, characterized by by more advanced technical parameters.

– Internal combustion motor pump: technical characteristics

A petrol engine pump is a pump designed for handling surface clear water that has an internal combustion engine operation. It is therefore a portable model, whose engine can be powered by petrol or diesel.

In most cases, the petrol engine pump is used for irrigation, both for small and medium-sized gardens than for agriculture. In this case, however, these are professional products, characterized by parameters such as capacity and power much greater than models for hobby use.

Depending on the type of use you have to do, or based on the size of the garden or the garden that needs to be watered, it may be necessary to opt for models that have more or less high power. In the case of very powerful models, it is also possible to associate the motor pump with automatic sprayers that allow for greater efficiency during irrigation operations.

In addition to the power, petrol-driven petrol pumps can be distinguished by their dimensions: it should immediately be emphasized that it is not certain that the smaller models are also the least powerful. Also closely connected to the power and technology of the engine is another very important parameter, namely noise. Usually, the motor pumps that feature a four-stroke engine are quieter than those featuring a classic two-stroke engine.

Again, when we talk about petrol-driven diesel engines, we need to specify if we are looking for a petrol or diesel model. A diesel irrigation motor pump can be particularly suitable when very long work sessions are required. THE petrol models, instead, they are more suitable for short-term jobs or for occasional interventions.

– Self-priming motor pump: what is it?

Very often, when you hear of motor pumps, the adjective self-appealing is read next to the name. What does it mean? A self-priming motor pump is a particular type of centrifugal pump that uses the centrifugal force for its correct functioning, that is to guarantee the full conveying of the water which must then be used for irrigation.

However, these models need to be able to work eliminate the air contained inside the pipes. This process can be carried out manually or automatically. In the latter case we speak of self-priming pumps. One of the main features of these pumps is the presence of one valve which does not allow the pump to be emptied when it is switched off. This ensures that the pump body is always ready and, above all, free from the air inside.

The self-priming pump models are characterized by a higher suction capacity than manual suction models and, moreover, they can work both thanks to a electric motor that endo-thermal.


If it is true that they are on the market many models available of moto-pomp is equally true that if you have a clear idea of ​​your needs for use, the choice will become much simpler. Know the technical parameters of the pump, their needs and frequency of use will in fact allow them to move towards a more or less professional model.

1. Einhell BG-GP 1140 N Self-priming pump

This pump has a power of 1100 watts and a maximum flow rate of 4 thousand liters per hour. It works with a maximum working pressure of 4.3 bar and is characterized by a prevalence of 43 meters. It is a very handy portable model weighing just two kilos and having dimensions of 40x24x28 centimeters.

It is a self-priming model characterized by high performance despite its compact dimensions, and is particularly suitable for irrigate the garden or a small vegetable garden. The suction power of the pump is guaranteed by five impellers made of plastic material. The asynchronous motor has a protection system which avoids overloading, thus ensuring perfect operation at all times.

The motor pump body is made of stainless steel. On it, the presence of a simple On / Off button allows you to proceed quickly with power on and off. The shape is compact and theessential aesthetics. There is a practice on the pump body ergonomic handle which ensures maximum comfort when taking, moving or laying the pump.

Its structure allows you to fish rain water up to eight meters deep. However, it is important to make sure that the water sucked in is completely clean, ie free from leaves, mud or other solid bodies, as the pump is not designed to crush debris. Once collected, the water is re-emitted at a pressure that reaches 4.3 bar.

For a correct use of the motor pump you need to know that it it cannot be used for vacuuming warm water, ie with temperatures above 35 ° C. Perfect for rainwater, therefore, it is not suitable for mixing the latter with hot thermal waters.

High quality can also be seen in full compliance with safety standards: for example, the ignition button is protected by a cover that prevents it from coming into contact with water, completely isolating it.

2. Expertshop self-priming petrol explosion pump

This motor pump features a four-stroke petrol engine with a power of 6.5 HP. It can be used both for quick interventions and for longer work. It has dimensions of 52x38x47 cm and a weight of 30 kilos. It is therefore a portable model but not necessarily very practical to move. There structure in metal that surrounds the pump, although having a purely protective purpose, can easily be used as a double handle for transport.

Made for the sole suction of rainwater, it is not able to grind any impurities such as leaves, mud or debris, for which it is advisable, in case of draft in waters not too clear, to insert a protective filter with a non-return valve for longer pump life.

The main technical features of this model include the high prevalence (with a maximum depth of 31 meters), the high suction height (equal to seven meters) and the maximum capacity of 60 cubic meters per hour. The suction diameter measures 75 millimeters.

These features make Expertshop’s self-priming petrol-driven pump a perfect solution for a large number of transactions: with it it will therefore be possible to water and empty a pool or a well, as long as it is characterized by clean water. When you buy this model of pump inside the package, a user manual is available while hooks and tubes must be bought separately as they are not included in the package.

3. Eberth’s GW3-ERWP20 petrol-driven petrol pump

This model of motor pump is characterized by dimensions equal to 47 × 37.5 × 38.5 cm and a weight of 21.7 kilos. It is a type model compact, easy to move thanks to a relatively low weight. The design is essential and the materials used are of high quality. Ignition is not via the on / off button but by tear-off.

The strength of this pump is certainly given by the engine. It is a petrol model in four times that provides the air cooling mode. The power of 4 thousand watts, equal to 5.5 Motor Horses, guarantees an adequate force in the movement of water. With a full of gasoline guarantees continuous operation for 8-9 hours. In case of lack of engine oil, the pump stops automatically to avoid damage to the engine.

Its scope, equal to 30 thousand liters per hour, is very high and makes this pump a perfect solution for those looking for a model that is able to water gardens of medium-large or suitable size pumping of pools. Depending on the cases and needs, the flow rate can be adjusted differently and continuously, that is without interruptions of values.

In addition to the flow rate, the other technical features to be highlighted are the pumping height, equal to a maximum of 30 meters, and the suction height which can reach 7 meters. The size of the hose connection is two inches. This petrol pump for irrigation can also be used to drain wells, ponds or cisterns.

Just enter the filter supplied for maximum protection against mud, dry leaves and other debris. In addition to the filter, inside the package it is possible to find other fundamental tools for the correct maintenance of each part of the pump, as well as a user manual which will make it possible to understand every possibility of using this model.

4. Eberth’s GW2-ERWP10 petrol-driven petrol pump

This brand offers a series of different models of motor pumps that differ in some technical features such as power, flow, hose connection and more. The GW2-ERWP10 model is characterized by a capacity of 12,500 liters per hour, a 2 HP engine power. The engine is petrol two-stroke and involves air cooling. The tank is 0.7 liters and the autonomy foreseen by a full of gasoline is equal to approx four hours. The boot is ripped.

It is a very compact and light model, perfect therefore to be transported and used in places where the power supply cannot be used. The dimensions, in fact, are of 29x27x34 centimeters and the weight of just seven kilos. Despite the lightness, the pump body is made in materials of great resistance, also perfect to stand outdoors in case of rain.

Despite its size, it is a pump with good power, capable of ensuring the pumping of large quantities of water. It can therefore be used successfully forgarden irrigation small and medium size but also for pumping pools. The fitting for the tuberia is one inch.

When using this pump, whose maximum water withdrawal height is 7 meters and the pumping height is 17.5 meters, it is necessary to do attention to the type of water. In fact, it can only be used for the aspiration of clear water. However, if necessary, the filter can be fixed to the pump Supplied to ensure maximum safety and also to drain ponds or tanks even in the presence of leaves or debris.

Inside the package of this motor-pump model there are a series of tools necessary for proper maintenance and a filter for use in dark waters. In addition, the user manual is available which, however, is written exclusively in German. However, on request it is possible to receive an Italian translation. Those who already have experience with this type of instrument, however, may realize that theusage is very simple and immediate and the instructions may not even be used.

5. Einhell GC-GP 6538 Self-priming pump

This self-priming pump model is characterized by very compact dimensions and minimum weight. It measures, in fact, 36.5x20x22 centimeters and weighs just under six pounds and a half. It is a perfect solution to irrigate small gardens, flower beds or small gardens and is perfect for the green lovers that do not look for products with a very high flow rate and power.

Being very light, this pump can be easily transported: the movement from one side to the other of the garden or any other type of movement is made simple by the presence of a convenient and wide handle. The engine of this pump, in fact, is of 650 watts, the maximum range of 3800 liters per hour and the maximum suction head and height are 36 and 8 meters respectively.

Made entirely of metal and plastic, it is characterized by an elegant red and black color. It is a model ad power supply that works with a voltage of 240. The power cord, 1.4 meters long, may need an extension if you do not have a comfortable socket near the area to be irrigated. It turns on and off with a handy on / off switch.

Despite the not very high power, the Einhell GC-GP 6538 self-priming pump motor is able to ensure more than satisfactory pressure, ensuring perfect irrigation of your garden or garden. The strength of this pump is certainly given by thegreat value for money.

In fact, even if it was not designed for intensive use, it was made exclusively with high quality materials. It should also be emphasized that being a model with an electric power supply and not an internal combustion engine, it guarantees ahigh silence thus allowing irrigation of your garden without causing discomfort to your neighbors or your roommates.

– The relationship between flow, power and size of the area to be irrigated

The different motor-pumps previously presented are all very different from each other, both in terms of power and power, prevalence and flow rate. However they are all very models performing and perfect for certain situations. But how do you select the pump that best suits your needs?

When choosing the model of motor pump it is necessary to carefully evaluate not only the characteristics of the pump itself but also and above all those of the garden or of the garden to irrigate. In fact, the dimensions will have to be assessed to better decide whether a transportable or a fixed pump is more suitable and, of course, to consider whether it is a green garden, a small garden or a series of flower beds differentiated between them.

Depending on the different needsin fact, an engine that is not too powerful but capable of ensuring a high head may be more useful or, conversely, opt for a more powerful model in terms of power even if it has a lower head.

Also the choice of the flow rate will not only take into consideration the quantity of water that is used but also the possible origin of the water itself, or if it is exclusively rainwater or even other clear waters. This difference will make it possible to understand theactual quantity ofwater available. In fact, it becomes useless to opt for a pump with a high flow rate if it is not possible to satisfy the water demand of the flow itself.

– But how does a motorcycle pump work?

The description of the mechanical operation of a motor pump is a very complex path. It is, in fact, a matter of understanding a series of engineering and physical problems that allow the correct functioning of these devices, using pressure and height gradients to collect water from tanks and wells and ensure good outlet pressure for watering.

Despite the complexity of the pumping systems, they can be schematized their operation highlighting that the main purpose of the motor pumps is to transport water, taking it from a pool, a well or other and using it to water a garden, a vegetable garden or other. To make this step, thewater comes sucked in through a tube, called suction tube, and then expelled in pressure via another tube, defined as delivery.

The heart of a motor pump is of course the engine. The engines of these devices may be different, ie electric, thermal or to burst (both petrol and diesel). The electric motor can be single or three-phase while the petrol engine can be 2 or 4 stroke. Regardless of the type of motor, it must be characterized by the presence of a rotor, capable of operating the turbines through which the water is sucked in and then, subsequently, taken out of the delivery pipe.

The speed with which these operations take place depends on the power of the motor but also and above all on the pressure and the flow rate of the pump, which allow a more or less rapid water inlet and outlet to complete the cycle. From a purely practical point of view, however, the operation of a standard pump can easily be schematized.

First, you need to decide whether the pump should be used for irrigation or for pumping water. When used for irrigation, it must be connected to a cistern or a clear water collection tank. Some models of motor pumps can operate without the connection to the tank because they are equipped with a rainwater accumulation system inside the pump tank.

This system represents a perfect solution for those who want to pay maximum attention to water consumption, both from an environmental and a purely economic point of view.

– Not only irrigation: the different possibilities of use

In most cases, those who buy a motor pump do it to improve their own conditions garden irrigation. Especially when the greenery of your own backyard, flowerbeds or garden is medium to large, thinking that you can water it all with a simple watering can becomes unthinkable.

A motor pump is therefore a perfect solution for those who, in addition to wanting to guarantee the right amount of water to their plants, do not want or cannot attach themselves to the water supply to always ensure a high quantity of water to their greenery. The greenest solution, of course, is to collect rainwater and recycle it later for watering.

The most suitable instrument for this type of water use is precisely the pump that allows the reuse of rainwater for a water cycle at no cost and made in full respect of the environment. However the motor pump can be a valid ally even in other situations including, for example, when you are in the middle of a flood.

In recent times, thanks to the increasingly tropical climate that characterizes Italy, there are frequent sudden downpours that lead to flooding of cellars, garages or other rooms positioned at the level or below the level of the floor. Have a motorcycle pump in the event of flooding it means being able to avoid entering the flooded place with buckets to be filled and then empty in another place.

The motor pump, in fact, in times varying according to the power and the extent of the flooding, it will be able to suck up all the excess water allowing to proceed as soon as possible to a drying of all the elements that had been the object of the flood.

Of course, among the alternative uses of the motor pump, there is that of giving life to one refreshing summer shower. It is a widely used solution, especially after having worked a whole day in your own garden or garden and want to wash it without bringing too much soil and dirt into the house.

– Water consumption: how to avoid waste

The use of a motor pump is certainly a perfect solution to improve and speed up the irrigation conditions of their own garden but also to extract water from swimming pools, cisterns or other environments. However, before using a motor pump, always pay attention to the possibility or not that these devices have to grind any leaves or debris present in areas of origin of the water, such as wells or streams.

Most surface pumps do not have this possibility, so it may be convenient to insert filters specifically to ensure that the pump is not damaged. Some brands offer, inside the package, specific filters just to improve the possibilities of use and protect the pump itself. However, it is necessary to highlight a very important aspect concerning the use of the motor pump and water consumption.

Very often, in fact, the convenience of watering with a pump it does not allow you to carefully evaluate the actual amount of water you use. If on the one hand it is true that in most cases it is rainwater and therefore at zero cost, on the other it is also true that not all motor pumps use rainwater so you can risk consuming much more water reserves compared to what you would do with a simple manual watering.

To avoid unnecessary waste, you can choose to use guns for the control of the jet, which are then made specifically for those who want to make sure they do not use excessive and disproportionate amounts of water during the irrigation of their garden.

– To conclude

Despite the different choices available on the market, choosing a pump suitable for your needs is not difficult if you know how and what to look for. In fact, as previously highlighted, the pumps all have different characteristics, which make it possible to assess, depending on the requirements, which type of model to choose.

If the first attention must be paid to the technical characteristics, that is to say on those elements that allow you to purchase a model that is proportionate to the use that you make and your needs, you should never forget to evaluate other elements as well. First of all, of course, there is the price. The essential motor pump models can be found on the market even at low to medium costs: it is about essential models which, however, must be chosen exclusively from those with a high quality.

In fact, Basic does not mean low quality but simply able to offer only essential functions. Those with greater needs because they work regularly with the motor pump due to a larger green area or the presence of a swimming pool, can instead direct their research towards medium-high cost models, characterized by technical parameters of greater importance.Of course, in either case, depending on one’s own comfort, one can opt for the choice of a model with electric power (usually less powerful) or petrol / diesel (more powerful and able to guarantee greater freedom of movement ). Both present pros and cons and should therefore be assessed subjectively, depending on the specific and personal needs of those who use the motor pump.

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Aaliyah Townsend
At the age of 6, I decided that I would graduate in Literature. Seventeen years later I realized my dream of a child and, along with that, the desire to transform my passion for writing into a profession also began to take hold. After a long collaboration with various web magazines, I came into contact with the big family of "Spotless Homes." Thanks to this new collaboration, I can finally dedicate myself simultaneously to my two great passions: writing and working in the privacy of my home in the company of my cat.