How to choose a garden pump for pumping dirty water: a comparative overview of suitable units

Operating modes of universal pumps

Choosing a universal pump for arranging a pool, the owner of the pool can set several modes of operation. So, acting in the "circulation" mode, the pump solves the following tasks:

— uniform heating of water;

- its supply to the filter system;

- prevention of flowering;

- Help with cleaning.

The "heating" mode can also be used by the user. It involves work, both for pumping water and for draining it, and also helps in the process of mixing the supplied water layers. As a result, the temperature at different depths will be the same and swimmers in the pool will feel maximum comfort during water fun.

Selection of the pump unit according to the pool type

If a mobile inflatable or frame pool is installed on the site, which the owners mount from season to season, there is no need to spend money on expensive stationary equipment of the pumping group. Water can be scooped out of the bowl with buckets, provided that it has a small volume, and the rest can be drained by gravity using an ordinary garden hose. You can also use portable filtration pumps, which are usually supplied with portable pools.

However, this option is completely unsuitable for capital cast-in-situ concrete pools, which are built in the house or on the backyard. For such pools, you need high-quality equipment, correctly selected in terms of power and functionality.

Criterias of choice

In addition to the main criterion - the power of the pump and its format, in the process of buying equipment in a store, the buyer's attention should also be focused on other technical characteristics that determine the scope of use and functionality. Among them:

- throughput;

- throughput;

— dimensions and weight of the body;

— network parameters;

- the presence of a guarantee from the manufacturer;

- ease of use;

— features of the engine;

- appointment;

— complete set of equipment;

- diameter of pipes;

- material of manufacture.

Indirect parameters are also important. Therefore, the list of the following positions deserves careful consideration - the noise level emitted by the pump, the availability of emergency engine shutdown options in it, the possibility of uninterrupted continuous operation, ease of maintenance and operation of the device.

Video: submersible pump for pumping water from the pool

Choosing the right pumping equipment for pumping water from the pool, the developer will be able to avoid many problems. If necessary, he will be able to quickly drain the bowl, preparing the pool for conservation for the winter or cleaning the walls of the pool as part of the scheduled maintenance of the structure.

The main criteria - how to make the right choice?

Among the many characteristics, it is worth highlighting a few main ones that you should pay attention to first of all when choosing a pump:

Purpose of the pump

Watering from a polluted reservoir, drainage of basements and wells, sewerage drainage, cleaning of a reservoir and so on. Each possible application has different optimal options, differing in design and allowable size of solids. It should also be taken into account that surface pumps cannot be used if the depth of the water surface exceeds 5 meters from the installation point of the device.

Required performance and head

Performance is selected based on the volume of tasks that will be assigned to the pump.

When choosing a surface pump, it is necessary to take into account its inability to work for a long time without interruption. The required pressure is calculated by summing the height of the drain above the water surface and 1/10 of the length of the horizontal pipes to the drain.

For example, having a well with a water surface depth of 5 meters, and a distance to the sewerage system of 50 meters, we obtain the required minimum head of 10 meters. For greater reliability of the drainage system, it is advised to take pumps with a pressure of 30% more than the calculated one.

Internal mechanism

Electric pumps for contaminated water are strongly recommended to be taken with a centrifugal type suction device. The centrifugal force inside such pumps not only ensures the movement of water in the right direction, but also throws solid particles from the blades to the body, preventing their rapid wear.

The presence of an automatic float and electronic switch

Float switches are designed to maintain a given water level in the tank. This allows you to automate the process of replenishing a water tower or draining excess sewage levels.

However, a float switch is not always enough, if it is necessary to pump out the water completely, electronic switches are used that are triggered by a few centimeters of water and turn off the pump when the water runs out. It is desirable to have at least one of the indicated types of switches in order to prevent the pump from running without water.

Surface pumps must be equipped with overheating protection.

The presence of an automatic relay and a built-in float

quality drainage pumps equipped with an automatic relay to protect against engine overheating and dry running. Such a constructive element is necessary if the owner of the equipment does not have the opportunity to constantly monitor the work, and if the amount of work is too large to be carried out without interruptions.

The presence of a float switch will help the submersible pump automatically maintain the water level in the tank within the established limits.

Performance

Pump performance is measured in liters per minute or cubic meters per hour, before buying a pump, you must calculate the maximum required speed for pumping water.

You also need to remember that the excess performance of the pump is achieved by reducing the pressure or increasing the power consumption, so for domestic needs it will be much more practical to take a medium-capacity device than an expensive and uneconomical industrial device.

Maximum water pressure

Pumps for dirty water usually not used to supply high pressure water, but in order to pump out water that lies significantly below the level of the drain, or the drain is at a considerable distance from the reservoir, you will need a pump with the appropriate pressure.

For example, a submersible device with a head of 10 m can lift water 10 meters and pump it 100 meters horizontally. The abundance of solid particles reduces the output pressure of the device, therefore, when buying, it is recommended to choose models that are 30% more powerful than necessary.

Maximum allowable particle size of contaminants

Each pump specifications list the maximum solids size it can handle, from 5mm to 50mm. Too large particles are retained by the grid at the inlet.

A larger particle size is usually associated with an increase in power consumption, weight and cost of the apparatus, so this issue must be approached based on the tasks assigned to the pump.For irrigation, 5 - 10 mm will be enough, for pumping out a cellar, reservoir or well - 20 - 30 mm.

It must be remembered that conventional drainage pumps are not capable of pumping liquids with fibrous impurities, a fecal pump will be necessary for this.

Overview of models and manufacturers

The selection of equipment begins with an inspection of how much this or that model costs.

But it is important to pay attention to the manufacturer. Here are some options for equipment for pumping / pumping water, which is well-deservedly popular:

1. Water cannon - equipment designed to pump flows from a well / well. The throughput of insoluble inclusions is low, the price is from $ 80
2. The kid is a design ideal for summer cottages. Low performance affects the low price (from $ 40).
3. A brook is a device for supplying water from wells and wells of medium depth. Unpretentiousness to the percentage of pollution, excellent performance, ease of installation and lightness of the device are complemented by a low cost (from $ 30), but the duration of operation is no more than 3-5 years.
4. The Gileks range is equipment designed for domestic use in both water supply and sewerage systems. Excellent practical qualities, work with different depths, unpretentiousness to pollution, a very long service life and good maintainability are the obvious advantages of the brand. Equipment cost from $200
5. Belamos - models are used to supply clean drinking water and irrigation. They have a built-in control unit, which facilitates the use of the units, and can work in manual, automatic and scheduled modes.There is also a filter to improve the quality of the supplied flow, overload protection, productivity up to 2800 l / h, supply depth up to 8 meters. Price from 150 $
6. Gardena is a brand of high reliability equipment. Universal devices are able to cope with the supply of liquid without interruption to high floors, be used for irrigation and at the same time are unpretentious to pollution, as they are equipped with a high-quality filter. Power up to 4000 l / h, ready for use immediately after purchase, the presence of 2 outlets for the hose (for irrigation and drinking water), a low noise threshold and a drainage tube for draining liquid add pluses to the device. Price from 120 $
7. Aquarius is an ideal pump for wells up to 45 meters deep. The reliability of the unit is confirmed by the execution of parts made of brass and stainless steel, there is a thermal relay, as well as a complete non-susceptibility to power supply drops (performance will decrease, and the device will not break). Silent operation is also a plus, but it is better to use the unit on clean streams. Price from 120 $
8. Whirlwind - pumps for deep wells (from 60 meters). Chrome-plated parts, durable housing, head up to 100 meters and price from $ 100 are the pluses of the unit. But energy consumption up to 1100 W is a drawback. However, the presence of overheating protection functions, smooth running, high pressure, high-quality assembly exceed the shortcomings.

All presented models from the Russian manufacturer have unique features - they are adapted to power outages, are resistant to mechanical stress and are easy to install. For users who prefer more expensive units, there are alternative options:

• The Grundfos range is an offer from German manufacturers.The company is engaged in the production of equipment for supplying and pumping liquids from wells, wells, tanks. The devices are equipped with sensors for overheating, overload, protection against dry running and voltage surges. Such functionality significantly extends the life of devices, but raises the price to $ 150. However, no matter how much the units cost, they deserve their price - the brand, according to consumers, is considered a leader in its field.
• Unipump is a brand of equipment indicated for use in wells with a high content of insoluble inclusions (up to 100 g/cubic meter). Feeding height up to 52 meters, productivity up to 4.8 m3/hour. There is overheating protection, soft start, automatic operation, but you will have to be careful in use if the liquid is very hard. The price is from $ 110, efficiency and noiselessness are pluses, but a weak network drive is a minus of equipment.

A preliminary analysis of the needs, the design of the water intake source, determining the length of the flow and the functional features of the water supply will allow not only to choose a good quality device, but also to correctly determine exactly how many pumps will be needed to uninterruptedly supply water to a house, household or suburban area.

Types of pumps

Pumps for drinking water and for dirty

Industrial water pumps

They are divided into two types:

• fecal type;
• drainage type.

However, drainage pumps are capable of pumping liquids with large solids. Therefore, in order not to damage the unit, a filter with a fine mesh is attached to the pipe. This will prevent large debris from entering the unit.This type of pump is universal and can be used not only for basements and cellars. It is used when cleaning dirty pools, artificially created reservoirs, wells.

There is no such thing in the faecal pump. It is not intended for pumping liquids containing solids. Some models of such devices may have a cutting mechanism for crushing large debris.

Submersible pump "Kid"

The appliance may be equipped with a circuit breaker. So when the liquid reaches a specific point, with the help of a float, the device is disconnected from the network. If the maximum level of waste water is exceeded, the unit will start working again.

The body of the Kid is equipped with a reliable waterproofing. If the housing is leaking, water can enter the engine and damage it. Therefore, periodically you need to remove the device from the water, and check the integrity of the case.

Submersible and external pumps

Principle of operation

These types, depending on the methods of work, are divided into submersible and external. The operation of a submersible pump implies its complete immersion in water.

These pumps must meet the following requirements:

• resistance to chemicals;
• to corrosive formations;

External pumps are lowered into the liquid only partially, the main part of the device is on the surface of the water. Basically, these devices are mobile, but less powerful than the submersible type, which contributes to energy savings.

What to look for when buying a drainage pump

For stable and high-quality operation of the pump, when buying it, it is important to consider the following points:

properties of the pumped liquid.

Before buying a pump, it is important to decide what exactly it will pump out. It can be clean, little, moderately polluted or dirty water, waste and sewer water, fecal matter.

The characteristics of the pump indicate what size impurities it can pass

In addition, attention should be paid to the temperature and pH of the pumped water.

depth of immersion (or suction).

This parameter shows the maximum depth to which the pump (or hose on surface models) can be lowered. If you do not take this indicator into account and lower it deeper, then it may simply not cope with the task.

case material.

The body can be made of plastic, stainless steel and cast iron. The plastic case is more prone to mechanical damage, but such models are cheaper. The steel and cast iron body is strong and durable, but these models will cost more.

the presence of circuit breakers.

Circuit breakers are necessary to protect against dry running of the motor, as well as from its overheating. Most pumps are equipped with an automatic float switch that turns off the unit when the water level drops, and turns it on when it rises, thereby protecting it from dry running. In addition, more powerful devices are equipped with protection against overheating of the electric motor in the form of a thermal relay.

pump performance (capacity).

It depends on this indicator how quickly it can drain a reservoir (basement, pool), or how many water intake points (faucet in the kitchen, in the bathroom, watering) can provide an acceptable pressure.

pushing ability.

It should not be confused with maximum pressure. The maximum head is the height of the water column to which the pump can deliver water. Those.the water will rise to the maximum height, but the pressure will be zero. Thus, the pressure capacity of the pump and, in general, its performance is affected by the diameter and length of the hose, the height of the water rise, and the voltage in the mains. For example, with a hose diameter of 25 mm, the performance is almost two times lower than with a diameter of 32 mm.

If all of the above factors are not taken into account, then the minimum performance of a serviceable pump can be obtained at the output, which is not a reason for claims against the manufacturer.

Consider which drainage pumps, according to users, can be called the best.

GARDENA 8500 Comfort – monitors the water level

GARDENA 8500 Comfort

GARDENA 8500 Comfort

The model allows you to pump out and pump clean and contaminated liquids with particles up to 30 mm in diameter. If you install this pump permanently in the basement or in the basement, then the premises will not be flooded. Thanks to the Aquasensor system, the device automatically turns on when the water level rises above 65 mm.

The body is made of glass-fibre reinforced plastic, which increases the performance of the device. The pump impeller is wear-resistant, and the capacitor motor is equipped with a thermal relay for overload protection.

The model has a universal outlet connector that allows you to connect hoses with a diameter of ½.5/8, ¾, 1, 1½ inches. The pump is protected from dry running, there are manual and automatic modes.

Advantages:

• adjustable optical level
• low noise motor
• universal connector
• long cable allows you to work at great depths

Flaws:

• low power
• low throughput

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Drainage pumps for irrigation

These models do an excellent job of pumping contaminated water from pools, basements, ponds, cesspools and swamps. Their advantage is a filter or grinder mounted on the rotor. Unlike gardening barrel irrigation pump, this type allows you to supply water with branches, leaves, silt and other debris, which subsequently becomes a liquid organic fertilizer for beds. Drainage units are economical to use and inexpensive. Initially, 10 applicants participated in the testing. After a detailed study and comparison of their characteristics, 3 best models were selected.

Zubr NPG-M1-400

The submersible drainage unit "Zubr NPG-M1-400" is equipped with a 400 W electric motor powered by a 220 V network. With a small head of 5 m, it provides a high performance of 7.5 cubic meters. m/h and the optimum immersion depth is 7 m. The device is suitable for draining flooded premises, cleaning wells and filling containers from ponds. Thanks to the installed filter, it is possible to pump both clean and dirty water with a particle size of up to 3.5 cm.

The model provides automatic switching on and off using a float that controls the water level. It is equipped with a thermal fuse to prevent overheating of the motor and is protected against dust, solid objects and moisture class IP 68. The body of the device is highly durable. For its manufacture, hygienic plastic reinforced with fiberglass was used.The kit includes a universal fitting for connecting hoses.

Advantages:

• Small weight - 3 kg;
• Compact dimensions - 19 x 9 x 16 cm;
• Power cord length - 7 m;
• Warranty period - 5 years;
• Low price.

Flaws:

¾ hose connection not provided.

Owners of the Zubr NPG-M1-400 drainage unit note the benefits of a built-in plastic handle. With its help, it is convenient to carry and immerse the device.

Gileks Drainage 110/8

This submersible pump pumps out groundwater, rainwater and waste water with temperatures ranging from 1 to 35°C. The size of the passed particles should not exceed 5 mm. It is suitable for supplying clean liquid from ponds, wells and storage tanks. It uses a centrifugal impeller. With a power consumption of 210 W, the unit provides a performance of 6.6 cubic meters. m/h, as well as head and depth of 8 m.

The Dzhileks Drainager 110/8 model has dry-running protection and an automatic water level control system using a float. The single-phase electric motor of the device is not subject to external damage due to the hermetically sealed housing. Its stator has working and starting winding with a thermal protector that turns off the engine when it overheats. The included universal outlet fitting accepts 1.0", 1.25" and 1.75" hoses.

Advantages:

• Electrical protection class IP 68;
• Optimal weight - 4.8 kg;
• The optimal dimensions for installation are 17 x 37.7 x 22 cm;
• Versatility;
• Ease of maintenance.

Flaws:

Shelf life - 12 months.

Karcher BP 1 Barrel Set

This watering pump should be bought by those who wish to pump water from tanks of almost any configuration. The Karcher BP 1 Barrel Set is equipped with a 400W electric motor. It provides a vertical water lift of 11 m (1.1 bar) with a maximum immersion depth of 7 m and a capacity of 3800 l/h. A pre-filter is installed here, which protects the system from dirt and small particles up to 1 mm. The design provides for a flexible mount on the handle, adjustable in height.

The advantage of the device is the complete set. There is a 15 meter long adjustable hose, 2 universal connectors and a sprinkler gun. The pump is equipped with a float switch for automatic water level adjustment. Its light weight (4.6 kg) and compact dimensions (17 x 52 x 13.5 cm) make it easy to transport. The maximum temperature of pumped liquid is allowed up to 35°C.

Advantages:

• Built-in protection against inclusion without liquid;
• The optimal cord length is 10 m;
• Convenient carrying handle;
• Economical energy consumption;
• Reliable build quality.

Flaws:

The bottom filter is not installed very securely.

The owners of the device praise it for its low power consumption and quiet noise during the workflow (44 dB).

Main types

• on wells - used to cleanse the bottom of silt deposits;
• fecal - equipped with special filters capable of retaining fibrous contents such as hair or threads;
• proper drainage - used to pump out not very dirty water from basements and pools;
• borehole - designed to clean drinking and technical wells from silting and sand.

Also, the equipment is divided into two large groups:

• surface pumps;
• descending into the water, that is, submersible.

Surface pump

Surface-type units are often called garden units, as they are designed for very little water pollution. Particles of dirt and impurities must not exceed one centimeter!

For operation, the pump is attached to a special platform (platform), and the liquid intake hose is lowered into the working volume filled with water. For example, in a home pool.

Pumps of this type do not have a long service life. They are designed for occasional use. Daily pumping of water, for example, from a public reservoir for the purpose of irrigation, is guaranteed to disable the device.

Advantages:

• ease of maintenance and installation;
• can be used anywhere where there is an opportunity to connect to the electrical network.

Flaws:

• it is impossible to use for work with great depth (maximum five meters);
• short service life;
• increased noise in metal models;
• short service life of plastic cases.

For the cold season, it is recommended to drain the water from it, dry it in the sun and send it to storage in the utility room.

Submersible pump

Dirt passes freely through the wide chamber of the housing without harming the pump. Such devices are household and industrial. The former will fully satisfy the needs of the owners of country houses and plots - they are quite economical in terms of electricity consumption and have good technical characteristics. Industrial designs are massive and powerful units with high energy consumption that will not reveal their potential when used for domestic needs.

Advantages:

• reliability;
• versatility.

Flaws:

1. high price;
2. the need to take into account all the technical parameters (an error when buying is not ruled out).

Submersible pumps will work efficiently if the owners paid attention to the following when buying them

• The location of the suction hole - the lower it is, the more thoroughly dirt and water will be removed from the bottom or floor. In reservoirs with a muddy bottom, as well as in very polluted wells and wells, the unit must not be lowered to the bottom. A strong stream of dirt will not allow the pump to work. It must be raised above the bottom or placed on a stand. There are also models with a water intake in the upper part of the body. For them, placement in the bottom mud is not critical.
• Automatic shutdown is an expensive but practical option. The owners do not need to stand near the switched on unit. As soon as the water runs out, the alarm float will automatically turn off the pump and protect it from overheating when running dry.
• Performance is a parameter that affects the scope of the device. It is believed that a capacity of 120 liters per minute is sufficient for irrigation. But for pumping you need a more powerful unit.

Such a pump will also be an invaluable assistant during construction work. With it, you can easily and quickly pump out moisture from construction pits.

Universal pump

Universal models. This type can be safely attributed to pumps designed for feces. They work completely immersed in liquid.

Advantages:

• power;
• strength and reliability;
• long service life;
• the presence of a grinder inside the body (designed for solid impurities);
• can be used to work in very dirty water.

Flaws:

high price.

With such a reliable unit, you can clean any sewage pit, as well as water the garden using a dirty pond.