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Owners of their yard often face the problem of pumping out contaminated water. Conventional pumps will not cope with such work. Solid fractions will clog in the impeller, or it may even jam. Drainage pumps are used to pump contaminated liquid. Many models even have a mechanism for grinding solid fractions. Among summer residents, the karcher drainage pump for dirty water is very popular, although there are also many units from other manufacturers.
Differences in drainage pumps depending on installation location
All drainage pumps are divided into two types, depending on their installation location: above water or immersed in liquid.
Units operating on land
Surface-type pumps are installed near a well or any other storage tank. Only the hose connected to the inlet of the unit is immersed in dirty water. To ensure that liquid is pumped out automatically without human intervention, the pump is equipped with a float and automation. The operating principle of this scheme is simple. The float is connected to contacts through which electricity is supplied to the pump motor. When the water level in the tank is low, the contacts are open and the unit does not operate.As the liquid level rises, the float rises. At this time, the contacts close, electricity is supplied to the motor, and the pump begins pumping.
Surface pumps are convenient because of their mobility. The unit is easy to move from one well to another. All main working units are located on the surface, which facilitates easy access for maintenance. Surface-mounted pumping equipment is usually produced with medium power. The units can be used in pumping stations for pumping clean water from a well or borehole.
Submersible units
The name of the pump already suggests that it is designed to be immersed in liquid. Units of this type do not have a suction pipe. Dirty water enters through holes located on the bottom of the pump. A steel mesh filter protects the working mechanism from the penetration of large solid fractions. There are models of submersible pumps equipped with a mechanism that grinds solid fractions. This unit can pump out a heavily polluted tank, toilet, or artificial pond.
A submersible drainage pump operates in the same way as a surface unit - automatically. It turns on when the maximum liquid level is reached, and turns off after pumping out. A special feature of the submersible pump is reliable electrical insulation and high power of the electric motor.
Criteria for choosing a good pump
User reviews do not always help when choosing a submersible drainage pump for dirty water. People can recommend good brands and give useful recommendations, but you will have to choose the unit yourself for certain operating conditions.
So, when choosing a drainage pump yourself, you need to take into account the following nuances:
- When choosing any type of pump for dirty water, it is important to pay attention to the size of solids it is designed for. This will determine whether the unit will be able to pump out dirty water from an artificial reservoir or whether it will only be enough to pump out muddy liquid mixed with small grains of sand.
- For a submersible pump, an important characteristic is the maximum depth at which it can operate.
- When choosing a unit for pumping out hot liquid, you need to find out what operating temperature it is designed for.
- Additionally, it does not hurt to pay attention to the maximum pressure of the pumped liquid, the dimensions of the pump, as well as the material of its manufacture.
When choosing a good pump for pumping out dirty water, experts advise paying less attention to cost and manufacturer. Let it be a domestic or imported unit, the main thing is that it is designed for the specific use and copes with the task.
The video shows the features of choosing a drainage pump:
Rating of popular submersible pumps
Based on consumer reviews, we have compiled a rating of submersible equipment for dirty water. Let's find out which units are in demand now.
Pedrollo
The submersible drainage pump called “Vortex” is equipped with a mechanism for crushing solid fractions. The body is made of durable technopolymer. The power of the unit is enough to pump out dirty water from a well with impurities of particles up to 2 cm in diameter. In 1 hour, the unit passes through up to 10.8 m3 dirty liquid. The maximum immersion depth is 3 m. This model from Italian manufacturers is considered the best choice for home use.
Makita PF 1010
Equipment from Japanese manufacturers has always occupied a leading position. The 1.1 kW pump can easily pump out dirty liquid with solid impurities up to 3.5 cm in diameter. The unit body is made of impact-resistant plastic. The submersible model is suitable for pumping contaminated water from a basement, pond or any pit.
Gilex
A submersible pump from a domestic manufacturer is reliable and affordable. The powerful unit operates at a depth of up to 8 m, is equipped with an overheating system and a float switch. The permissible size of solid fractions in dirty water is 4 cm.
Alko
Alko submersible pumps have high throughput. The most popular is model 11001, capable of pumping 200 liters of dirty water in 1 minute. A big plus is the silent operation of the electric motor. The durable and lightweight plastic housing made the unit mobile. The pump can be quickly put into operation when the basement is flooded, and, if necessary, moved to another problem area.
PATRIOT F 400
An ideal submersible model for country use. The small unit F 400 can pump up to 8 m in 1 hour3 water. It is not picky about the quality of the liquid, as it copes with solid fractions with a diameter of up to 2 cm. The maximum immersion depth is 5 m.This is enough to immerse the pump in a well or pond. The unit comes with a float.
Karcher pumping equipment
I would like to dwell in more detail on Karcher pumping equipment. This brand has long gained popularity in the domestic market. Pumps of any type are characterized by good power, long service life, efficiency and compact size.
Karher pumps are divided into three groups according to the specifics of use:
- A high-pressure pump is used for washing contaminated objects. The units are convenient to use in private areas and cottages when washing cars, garden equipment, etc. Compact pumps are made of a durable, corrosion-resistant composite.
- Drainage models are used for pumping heavily contaminated and clean water, as well as other liquids.
- Pressure units are designed to pump liquid from tanks. Pumps are successfully used for arranging water supply from a well.
A popular drainage pump is the SDP 7000 model. The compact unit is capable of pumping out dirty water with solid impurities up to 2 cm in size. With a maximum immersion of 8 m, it is capable of pumping 7 m in 1 hour3 liquid, while creating a pressure of 6 m. The household model is capable of competing with semi-professional analogues in terms of functionality.
Reviews
Now let's look at a few reviews from users who have experience using drainage pumps.