What is a pump for pumping water out of a pool, which one is better to choose and why?

Swimming pools at the dacha are indispensable in the summer, because it’s so nice to swim in clean, cool water in the sweltering heat, and in the evening have a beach party right on the site. But for this the water must be really clean.

Unfortunately, the pond quickly becomes clogged with sand, fallen leaves, small stones and soil. After winter, if the water is not drained, it is generally not suitable for swimming. So you won’t be able to do without a pump to pump water out of the pool.

In this article we will tell you how to choose a pool pump and which option will be better in each specific case.

Types of pumping devices

There are two types of pumps:

1. Self-priming, capable of pumping water from tanks, containers or reservoirs, without additional devices or actions.
2. Normally suction, unable to pump air out of the suction hose and requiring pre-filling with water.

There are the following types of accommodation:

1. Surface. The body and the entire working part are located next to the bowl; only the suction hose is immersed in water.
2. Submersible, installed directly into the water.

Surface installations are easier to maintain, install, and connect. However, submersible models are more economical and reliable. If a surface pump has a long suction hose, it will require more power to lift the column of water using only the vacuum inside the pipe.

For submersible devices this problem simply does not exist; they are automatically filled with water when immersed. Drainage models are specially created to solve such problems - they pump out water from any tanks or open bodies of water, being submerged to a shallow depth, or partially.

It must be taken into account that surface models can be installed permanently, while submersible models are mobile, delivered to the pool and removed after performing their functions.

Operating principle

A submersible pump combines both the pump itself and an electric motor in a common sealed housing. Its operating principle is the same for garden and drainage options . The motor rotates the wheel blades and the chamber fills with water.

Under the influence of centrifugal force, the liquid is displaced and enters the drain pipe. The hole for the fence can be either top or bottom. The first will not allow all the water to be poured out, but the drain will not become clogged with large leaves and silt. The second will empty the pool down to a centimeter , but you will need to carefully monitor the cleanliness of the bottom.

Surface electric pumps can be vortex, centrifugal and with an external ejector . The latter are now almost never produced; they have been replaced by submersible ones.

Centrifugal models have wheels that are driven by a working shaft supported by bearings. The wheels build up pressure, the water rises, then drains through the outlet pipe. All electric pumps have a relay sensor; it switches off when the water supply is stopped .

Criterias of choice

Choosing the right type of device to pump water out of the pool is not easy . You need to have an idea of ​​the operating conditions, design features and parameters of pumping units.

When selecting the right model, all aspects related to pumping water from a given pool are consistently considered in order to determine the most successful combination of characteristics.

By material

Technoplast parts can be used in the design .
They are less durable than all-metal models. At the same time, the pools use fairly clean water that does not have large suspended particles. Therefore, in this case, you can use models with a plastic impeller.

In addition, you need to carefully consider what kind of metal is used in the manufacture of the pump . Since it deals with water, the possibility of corrosion must be excluded, so a stainless steel model would be the best option.

There are often situations where the body itself is made of stainless steel, but the fastening elements are made of ordinary steel. Such models will not be able to work for a long time, and when performing repairs they will create additional difficulties - rusty screws significantly complicate disassembling the device.

According to the characteristics of the pumped medium

Pumps are divided into groups according to the type of pumped medium:

• for clean water with a low permissible content of fine solids;
• for water with a certain content of solid inclusions (usually, the characteristics of the model indicate the permissible value and quantity of foreign components);
• mud pumps designed for pumping out thick and viscous liquids.

Pool water, even the dirtiest, does not contain large amounts of solid particles. Therefore, when choosing a pump, you can consider models from the first group.

By performance

Pump performance is the main characteristic that determines how quickly it can pump out all the water from the bowl.

In order to choose the right model, you need to know the volume of your pool and the amount of water in it.

When considering the characteristics of the device, it is necessary to take into account in which units the productivity is indicated - this can be m3/h, or l/min .

You need to know that one m3 contains 100 liters, i.e. The pool has a volume of 3.7 m3 and holds 3700 l. This way you can roughly calculate how long it will take for this model to pump out all the water. If it takes a whole day (or several days) to complete the task, you need to look for a more efficient pump.

By diameter

The diameter of the pump body does not matter since the pool is large enough to accommodate the pump body or hose without difficulty.

However, it is recommended to pay attention to the dimensions of the suction pipe or the diameter of the suction hose (on surface models). The cross section of these elements determines the throughput and indirectly determines the performance of the device.

It is recommended to choose models with large diameter suction pipes or receiving elements.

By type of switch

There are pumps with manual start and stop. However, when pumping a pool, the work takes a lot of time.

The owner may miss the moment when the water has already been removed and it is time to stop the pump. Therefore, it is recommended to use models with a float switch .

As soon as the level gets too low, the float will drop and command the pump to turn off. This will help protect the device from overheating.

Universal solutions

In addition to pumping water, pumping equipment in the pool must perform other functions. This is ensuring the circulation of water, distributing chemicals in its thickness, mixing heated and cold layers, supplying liquid to the purification and filtration system, etc. Therefore, far-sighted developers initially equip pools with universal devices capable of operating in several modes.

Such pumps allow, if necessary, to drain the tank by completely pumping out all the water from it, and also allow for efficient circulation in it. The equipment is quite expensive, but its functionality, practicality and multitasking fully recoup all investments made by the developer.

Popular manufacturers

Pumping equipment is widely in demand in all areas of technology, industry and everyday life. Therefore, it is impossible to list all manufacturers.

Let's consider only the most famous companies producing specialized equipment for swimming pool maintenance:

According to the table, you can see the specifications of some manufacturers for small household pools (Bestway, Intex) and for larger, stationary models.

Surface pump for pumping water

Refers to low power pumps. It is best used for small volume pools. Made of durable plastic and has a low noise level. Convenient because it can be easily dismantled and installed. But there are also industrial pumps made of metal. They are designed for large private and public swimming pools. Usually the equipment for them is laid at the stage of construction of the bowl.

TOP 3 models with description and cost

Let's look at several popular models of pumps for pumping water out of a pool.

Submersible

Among the submersible pumps, the following samples can be distinguished:

Bestway 58230

The drainage pump is immersed in water for pumping, which allows you to collect silt and small debris from the lower (bottom) tiers of the bowl. Model productivity - 3 m3/hour, power - 85 W. The cost of the pump is 4200 rubles.

Intex 28606

Drainage pump with a capacity of 3.6 m3/hour. The permissible immersion depth is 122 cm. The price of the model is 2800 rubles.

GILEX 220/12

Powerful pump capable of pumping up to 13 m3/hour . Suitable for working with large bowls. Can be submerged in water up to 8 m, equipped with a float switch. The price of the model is 5300 rubles. Read reviews here.

Surface

The best models of surface pumps are:

AquaViva LX XDA75M

Productivity - 7 m3/hour (at a head of 8 m) . Designed to work with bowls no more than 28 m3. Price - 9000 rub.

Kripsol Ninfa NK-33

Pump power - 330 W. Productivity - 8.4 m3/hour (at a head of 6 m). Housing made of fiberglass reinforced polypropylene. The cost of the pump is 16,000 rubles.

Hayward SP2503XE61 EP33

Productivity - 4.8 m3/hour . Housing made of fiberglass reinforced polypropylene. The impeller is made of noril, fixed on a stainless steel sleeve. Price - 24,000 rubles.

Surface pump models are installed in separate chambers or boxes, not far from the bowl. As a rule, they are used to work with stationary bowls - composite or concrete pools indoors.

VORTEX DN-750

​Photo: https://beru.ru/

A reliable drainage pump that is capable of maintaining pressure in the water supply system and supplying water to consumers. It turns on and off independently depending on flow. Can work with contaminated water, passing particles up to 25 mm. The outlet pipe is universal - any hose will do. Impact-resistant plastic is not afraid of corrosion. The float mechanism reacts to the water level - when low, the unit turns off, when high, it turns on. It has a temperature sensor built into it; if the motor overheats, protection is triggered and it turns off.

Drainage pump DN-750 (750 W)

Advantages:

• powerful
• can be used in water supply system
• strong pressure
• quiet

Flaws:

• soft plastic

Safety rules at work

When working with pumps, safety rules must be followed. First of all, these are the standard requirements when working with electrical installations:

• serviceable wires, insulation, switches;
• presence of a grounding conductor;
• correspondence of the network voltage with the installation parameters.

In addition, special requirements must be taken into account:

• there should be no people in the pool bowl while the pump is operating;
• Do not leave a working device unattended;
• operating conditions must comply with the manufacturer's requirements (temperature, supply voltage, etc.).

Gilex Drainer 220/12

​Photo: https://beru.ru/

Compared to previous models, the cable length here is 7 m, so it cannot pump out all pits to the bottom. This is a good option for clearing groundwater from basements, as well as for irrigating vegetable gardens. The device has a compact size, so it fits easily even in small holes. The plastic body is a little unusual, but this is a big plus due to its resistance to corrosion. The equipment has a long service life, in particular due to the automatic stop of operation using a float switch when the liquid level decreases.

Drainage pump Drainage 220/12 (590 W)

Advantages:

• fast work
• Easily pumps out pools
• sophisticated overheating protection system
• reliable water cooling
• housing tightness

Flaws:

• high power consumption

And this is where our TOP comes to an end. We hope that we were able to find the right device for your pool.

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Step-by-step instructions on how to drain liquid from the bowl

Let's consider the procedure for draining water from the pool.

Through the filter

Any type of filter pump has a special water draining mode. You just need to start it and ensure it is discharged into the sewer.

Procedure:

1. Turn off the circulation, switch the pump operating mode to the “drain” position.
2. Check the presence of a drain hose and its connection to the sewer. If it is not available, ensure water drainage.
3. Start the system and wait until it is completely pumped out.

As a rule, the level of pumping depends on the position of the suction valve in the edge of the pool. In this case, you cannot count on complete removal of water; you will have to do a lot of manual work.

Using a drain pump

A sump pump is a more efficient way to remove water. Procedure:

1. Connect the drain hose to the drainage system. The standard hose length is 5 m; sometimes it is necessary to extend it by the required amount.
2. Immerse the device in water and begin pumping. At this stage, the owner only needs to monitor the operation of the system.
3. When all the water has been removed, the device is turned off and stored.

This pumping method is considered by many users to be optimal - the fastest and safest.

You will find all the most important and useful information about pool equipment in this section.

Bison NPG-M1-550

​Photo: https://beru.ru/

The Zubr NPG-M1-550 pump is worthy of attention primarily because of its versatility; it can be used for draining small reservoirs, swimming pools, drawing water from a well or well, and supplying it to a height. Moreover, it does not have to be clean; the equipment works well even with slightly dirty ones. This model is suitable for use in drainage and aeration systems. Duration of service and ease of use are guaranteed by reliable protection against engine overheating, automatic start and shutdown. This is responsible for the dry running sensor, which is triggered when the volume of pumped out liquid decreases.

Drainage pump NPG-M1-550 (550 W)

Advantages:

• easy
• good dive
• good performance
• centrifugal mechanism
• good power

Flaws:

• high noise level during operation

Rating of the TOP 15 best pool pumps of 2021