Introduction
Pool chlorination is an essential aspect of large pool maintenance, and dosing pumps play a crucial role in this process. In this article, we will explain how to carry out the chlorination of large pools using dosing pumps. You will discover the importance of maintaining the right chemical balance in the pool water and how these pumps facilitate this task.
What is pool chlorination?
Importance of Disinfection
Pool chlorination refers to the process of disinfecting pool water to eliminate bacteria, viruses and other micro-organisms that can be harmful to swimmers' health. Keeping the water clean and safe is essential for a healthy swimming experience.
Traditional Chlorination vs. Dosing Pumps
Before going into the details of dosing pumps, it is important to understand the differences between traditional chlorination and this more advanced method. Traditional chlorination often involves the use of chlorine tablets or grains, which must be manually added to the water. This can be inefficient and error prone.
Metering Pumps: What are they?
Dosing pumps are automatic devices that deliver the correct amount of chemicals, such as chlorine, into the pool water continuously and accurately. These pumps are essential for maintaining chemical balance in large pools where manual dosing would be impractical.
What type of pumps are most commonly used for dosing in swimming pools?
The most commonly used metering pumps in swimming pools are diaphragm metering pumps and peristaltic metering pumps. These two types of pumps are particularly popular due to their accuracy and ability to deliver chemicals in a constant and controlled manner into the pool water.
If you want to know more about this type of pump, we recommend this article from our blog on 7 basic tips for choosing metering pumpsThe new products, which can make it easier for them to make the final decision on which one to buy.
Diaphragm Metering Pumps
These pumps work by means of a diaphragm that flexes and contracts to allow the flow of chemical liquid. They are known for their durability and ability to handle a variety of chemicals. They are also ideal for large pools due to their ability to dose large volumes of chemicals.

Peristaltic Dosing Pumps
These pumps use a flexible tube and rollers to dispense the chemical. The tubing is squeezed and released rhythmically, allowing the chemical to be sucked in and released in a controlled manner. Peristaltic pumps are known for their precision and ease of maintenance.

Both types of dosing pumps are effective in maintaining the chemical balance in pools, ensuring that there is the right amount of chlorine or other sanitising chemicals in the water at all times. The choice between these pumps depends on the specific needs of the pool and the preferences of the owner or operator.
Recommendation for pump chlorination
There is no fixed rule regarding the amount of litres of water, as other factors, such as the use of the pool, exposure to the sun and temperature, also influence the amount of water needed. chlorine dosing.
However, as a general reference, dosing pumps tend to be most beneficial in medium to large pools with capacities exceeding 50,000 litres of water. In these pools, maintaining an adequate level of chlorine through manual dosing can be complicated and requires constant attention.
Smaller pools, such as residential pools, can often be effectively managed by manual chlorine dosing, as long as the owner ensures that chlorine is measured and administered on a regular basis to maintain a proper chemical balance.
Metering pumps are especially beneficial for certain types of pools including:
Municipal Swimming Pools:
Municipal swimming pools are often large in size and receive large numbers of swimmers on a daily basis. To maintain water quality and user safety, it is essential to have an accurate dosing system, such as dosing pumps, to ensure that chlorine and other chemical levels are within the appropriate parameters.
Competition pools:
Pools used for swimming competitions require precise water control to meet the standards set by sports federations. Metering pumps ensure that chlorine and other chemical levels are kept constant, which is essential to ensure fair conditions for swimmers.
Aquatic Parks:
Water parks often have a large number of pools and slides. To maintain water quality in all areas of the park, metering pumps can be an efficient and convenient solution.
Hotel and Resort Swimming Pools
Hotels and resorts with large swimming pools require constant water maintenance to ensure guest satisfaction. Metering pumps help to maintain a clean and safe environment in these facilities.
Therapeutic pools:
Pools used for physical therapy or rehabilitation often require strict control of water quality. Dosing pumps ensure that the water is free of contaminants and safe for patients.

What other pool chemicals are dosed with pumps?
In addition to chlorine, other chemicals important for proper water maintenance and disinfection can be dosed into swimming pools. Some of the most common products that are dosed by dosing pumps in swimming pools include:
Algaecides:
Algaecides are used to prevent the growth of algae in the pool water. They help to keep the water clear and free of unwanted algae.
Clarifiers:
Clarifiers are used to remove suspended particles from water, which improves water clarity and makes it more visually appealing.
pH adjusters:
These products are used to increase or decrease the pH of the pool water and keep it in an optimal range. Proper pH is crucial to the effectiveness of chlorine and the comfort of swimmers.
Chlorine Stabilisers:
Stabilisers, such as cyanuric acid, are used to protect chlorine from degradation caused by intense sunlight, which prolongs the effectiveness of chlorine in disinfecting water.
Shock Products:
Shock products, such as calcium hypochlorite or sodium hypochlorite, are used at times when intensive disinfection is needed, such as after a storm or a high load of swimmers.
Descalers:
Descalers are used to remove mineral deposits, especially in pools with hard water that tend to accumulate calcium and other minerals on surfaces.
Alternative Disinfectants:
Some pools may use alternative disinfectants to chlorine, such as bromine, which are also dosed by metering pumps.
Accurate dosing of these chemicals is essential to maintain a proper chemical balance in the pool, ensuring that the water is clean, safe and comfortable for swimmers. Dosing pumps play a key role in delivering these products in an efficient and controlled manner.
Advantages of Metering Pumps
Dosage Accuracy
One of the main advantages of dosing pumps is their ability to dose chlorine accurately and consistently. This ensures that the pool water maintains an optimum level of chlorine at all times, avoiding potentially damaging fluctuations.
Saving Time and Effort
By eliminating the need to manually dose chlorine, dosing pumps save a significant amount of time and effort compared to traditional methods. Pool owners can enjoy more time in the water and less time on maintenance.
Security
Metering pumps also contribute to pool safety by ensuring that the right amount of chlorine is always present. This reduces the risk of health problems related to exposure to contaminated water.
Maintenance of Dosing Pumps
It is crucial to keep metering pumps in good working order to ensure optimum performance. This involves regular cleaning of components and replacement of worn parts.

Conclusion
Chlorination of large pools using metering pumps is an efficient and safe method of keeping pool water in optimum condition. These pumps offer accuracy, time savings and safety, making them a valuable investment for any large pool owner.
Ensure the quality of your pool water and enjoy a carefree summer with dosing pumps!
Frequently Asked Questions (FAQs)
At ProDos we have a wide range of dosing pumps for large pools. Visit our shop and find out which one suits your needs.