Which pump should be used to pump water out of a swimming pool?

When investing in a swimming pool, you should not skimp on equipment to ensure its smooth functioning. The tank must be equipped with various types of devices that can circulate water in the pool and quickly drain the bowl. This is a system of filters, drains, as well as pump group units. When choosing them, consumers may encounter various difficulties.

There is an opinion among ordinary people that pump power is a parameter that can be determined with formal precision. However, a superficial attitude to the choice of pump power will lead to negative consequences. A pump that is too powerful results in higher operating costs and has a negative effect on the performance of the filter system, leading to premature wear caused by constant excessive loads. A pump with insufficient power, which costs less, will not justify the money saved at the time of purchase, since this equipment will not cope with its functions satisfactorily.

In view of this, owners of swimming pools are strongly recommended to take the time to find, among the offers from various manufacturers, the optimal pump for pumping water out of the pool, corresponding to the configuration and type of pool.

Why drain the water?

Many pool owners hope that if the pool has the most modern cleaning system installed, then there will be no need to drain the water. However, it is not. There are certain rules that recommend changing even the clearest water at least once a year. Sometimes you have to do this much more often.

In some cases, the water needs to be drained not in full, but partially:

• to clear away small debris. It's no secret that debris, leaves, insects and human waste (fat, hair, skin particles, sweat) accumulate in water. Large debris can be easily cleaned using a net or filtration systems. Small debris can remain in the water in the form of plaque or a greasy film on the surface or on the walls at the water level. To remove such dirt, partial pumping of water from the pool is necessary. After this, the greasy rim and other components containing dirt must be cleaned. Next, clean water is poured to the required level;
• to carry out repair work. Lighting fixtures break down most often. To replace most of them, you often need to drain some of the water. You can avoid this need by purchasing special devices that can be replaced directly under water. Such devices will cost an order of magnitude more. In the bowl itself, the seal may also be broken for some reason. If a breakage or crack has formed in the upper or middle part, then the water can not be drained completely, but 5-10 centimeters below the problem area. After the repair is completed, the volume of water is replenished;
• to prepare the pool for the winter. Some skimmer cleaning systems are not equipped with a drain function, and then you need to figure out how to drain a certain amount of water. You cannot leave it in full, as this can lead to deformation of the entire structure.

Draining water from the pool is carried out for many reasons.
You will have to completely drain the water in the following cases:

• to restore the lower part or bottom of the pool;
• to remodel the pool or do global renovation work;
• to properly prepare the reservoir for the winter. Complete drainage is necessary in models that do not provide for wintering. Such pools are not made of frost-resistant materials, so they need to be completely dried, cleaned and assembled for the winter;
• to clear the pool of a dead animal. If such a nuisance occurs, the pool must be emptied and thoroughly washed using chemical disinfectants. Swimming in such water is life-threatening!

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.

How to drain water

To drain the water, you need to connect hoses to the drain holes, if provided in your model. Some designs (especially inflatable ones) have drain valves. In order not to turn the area into a swamp, it is better to connect hoses to them and drain the water to the selected place.

A pump will help speed up the process to pump water out of the pool. Without pumping equipment, the average pool will be empty after 10 hours. Residues can be removed using a bucket or other available means.

It is impossible to pump liquid out of large capital structures quickly. It is better to allocate enough time for this. If you rush, a sudden change in pressure on the outer and inner walls can ruin the tank. Microcracks may form, which will be very difficult to repair.

To quickly drain the water from the pool, you can connect a pump

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

Which pump should I choose for this purpose?

There are several types of devices:

• submersible This design is quite simple. You just need to put the device in a pond and start it. Can be used in swimming pools, cesspools or basements. The advantages are low cost, prevalence, light weight and dimensions. But the downside is their low power, so they are not suitable for large structures;
• surface. Such a device is located at the top, and the hose is lowered into the reservoir. This technique is quite powerful and can quickly empty a fairly large tank.

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.

For watering the plot

Owners of an inflatable or small frame structure can spend water watering beds or flowers in their garden. You need to connect a hose and a low-power pump to the drain holes. You can do without it, then the pressure will not be very strong. You can secure the hose and go about your business, but it is still better to control the process so that the area does not turn into a swamp. You can also wash paths made of paving stones, stones or asphalt with this water.

You can water the area with water from the pool

This method is not suitable for large reservoirs or pools in which water has been chlorinated. Such liquid should absolutely not be used for watering plants, otherwise you can simply destroy all living things.

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 .

Drain into a pond

Draining the liquid into a lake or stream is the easiest option. You can also throw it into the ravine nearby. This method is suitable if the source is located no more than 25 m from the pool. If this rule is not followed, physical laws will not allow the water to leave, or it will do so extremely slowly.

You can drain the water into the nearest pond or ravine

You can only drain water into the natural environment if you do not use chemicals. If the water has been chlorinated, it should only be poured into the sewer, since there it will undergo several stages of purification and will not be harmful to the environment.

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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Drain into the sewer

The most convenient and correct method is to drain the water into the sewer. To have such an opportunity, it is necessary to provide for this in the design in advance. To do this, leave a hole for drainage at the bottom. This will quickly get rid of all the liquid. A pump may not be needed to drain water from the pool, since the liquid will drain under its own pressure.

In order for the system to serve for a long time and reliably, it is necessary to lay pipes that can transport the required amount of water in a certain time. Pipes with a diameter of 11-15 centimeters are considered optimal. They need to be laid at a slight angle to prevent water from accumulating. The less the pipe “loops”, the faster the reservoir will empty.

If there is a temporary frame or inflatable structure on your site, you can consider a special drain pipe leading to the sewer. Sometimes, local laws impose restrictions on the amount of liquid discharged into the sewer. Therefore, it is better to find out in advance what the situation is in your area.

Quattro Elementi Drenaggio 1100 F Inox

​Photo: https://beru.ru/

First of all, this model attracts with its optimal combination of reasonable price and acceptable quality. In terms of cost, it can be compared with surface options, but the immersion depth here is 2 m. Due to its small size and average weight of 7.5 kg, the pump easily fits in small ditches, including taking a vertical position without any problems. The equipment can be used for pumping liquids with temperatures up to 35 degrees and is designed to work with wastewater.

Drainage pump Drenaggio 1100 F Inox (1100 W)

Advantages:

• almost doesn't heat up
• long cable
• fast absorption
• reliable switch

Flaws:

• immersion depth does not exceed two meters

Tap to receiver

If it is not possible to connect to a sewer, then you can make an improvised one of your own. To do this, you need to dig a pit below the level of the reservoir. It is best to find a site with a slope for this. Usually they make a hole with a volume of 1-2 cubic meters. The walls need to be laid with bricks or stones, but not tightly so that the soil can absorb liquid. A concrete cover with a special hole for air outlet and hose connection is placed on top. In this case, it will not be possible to drain all the water at once.

You can drain the water from the pool into a special receiver.

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.

How to wash and store the bowl

How to clean the pool after draining the water? Owners of frames or stationary structures should not have any problems, since even when empty, the structure holds its shape well and cleaning the walls is not difficult. With inflatable structures you will have to work a little. Such a pool needs to be washed completely, because if you drain the liquid, the top ring will simply fall and washing it will be problematic.

In the assortment of many companies you can see very convenient accessories for cleaning the pool. These are various sliding brushes and rubber sponges of different shapes, which can be used to remove dirt even from the most inaccessible places.

The walls and bottom must be thoroughly washed to remove plaque, mucus and other dirt. Any chemicals must be used strictly following the instructions for your model. After this, the frame or inflatable structures need to be dried. To do this, you can use spacers that do not allow liquid to hide in cracks and joints.

Next comes the disassembly of the structure. It is recommended to sprinkle the rubber parts of the bowl with talcum powder so that they do not stick together or become deformed. To ensure that the pool lasts as long as possible, it is best to store it in a warm, dry room. Although some structures can withstand wintering, temperature changes or moisture can shorten the service life of some parts.

What to look for when choosing a pool pump?

To study the operation of the structure in more detail, you need to familiarize yourself with its type. You may find such device models in stores;

• Centrifugal or vortex. This model is a cheap option that has high noise levels and low performance.
• Self-priming. The most common type of pump. Affordable price, low noise level makes it as comfortable to use as possible. Due to low performance, most often used for small pools
• Circulating. These are the best pool pumps. Their power is enough to pump water at least 4 times a day, suitable for any volume.

The choice of pump depends on the following criteria:

• pool volume;
• productivity;
• reliability of the design.

When purchasing a device, experts recommend reading a detailed description of the types of interest, consulting with consultants, or learning about the quality of work from friends who have already acquired the unit. Using the above tips and rules, you can be completely confident in the high quality and durable operation of the device.