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FAQs

Frequently Asked Questions about Salt Chlorination and Salt Chlorinators

salt chlorination faqs

Salt Chlorination

Is Innowater a Spanish company?

Yes. Innowater salt chlorinators are Made in Spain, developed and assembled in our facilities in Boadilla del Monte (Madrid, Spain), and shipped to the more than 40 countries where the company currently operates.

What makes Innowater salt chlorinators different?

Innowater equipment is based on the latest technologies applied to salt chlorination, with efficiency, ease of use, reliability and durability as the main goals.

Where can I buy an Innowater salt chlorinator?

We are a manufacturer and do not sell our equipment directly to end users. Instead, the vast majority of pool companies and independent professionals already trust our technology and are the ones who sell our salt chlorinators.

Does a saltwater pool contain chlorine?

Yes, but with one major difference: chlorine is generated naturally from salt through electrolysis. This means there is NO need to add chemical chlorine in tablet or liquid form, drastically reducing the handling of hazardous products and irritating effects.

Why doesn’t the chlorine level increase if the salt level is correct and the pH is properly adjusted?

This usually happens in new pools or in pools where the water has recently been changed. Solar radiation and heat quickly break down the free chlorine in the pool water, so in pools with high sun exposure chlorine remains in the water for a very short time, even if the production rate is high. Also bear in mind that the chlorine produced by the salt chlorinator is pure and free of additives, which makes it especially reactive. Although this is one of its main advantages, it can lead to low concentration readings under these conditions. If you have difficulty maintaining a chlorine residual in the pool, you can use a chlorine stabiliser.

I already have a pool with a traditional chlorine disinfection system. Can I switch to salt chlorination?

Yes! It’s very easy. You simply need to install the salt chlorinator (control box and cell) in the filtration room or plant room of the pool. Find out how to do it.

What type of salt and how much does a salt-chlorinated pool need?

Any type of common salt can be used in a pool with a salt chlorinator. It is true that the more refined and pure it is, the less residue there will be and the cleaner and clearer the water will be from the start. As for the required quantity, between 5 and 6 kg per m3 of water is most common.

How and when should I add salt to my salt-chlorinated pool?

A salt-chlorinated pool requires an initial salt dosage of between 4 and 7 kilos per cubic metre of water. Afterwards, you only need to add a certain amount of salt depending on the amount of water evaporated and the amount of new water added. In most cases, a small amount of salt added at the beginning of each season is enough.

Is the water in a salt-chlorinated pool the same as seawater?

No. Although it is salt water, its salt concentration (between 4 and 6 grams per litre) is much lower than that of seawater. In fact, many people compare it to a human tear.

Is salt chlorination compatible with other chemicals such as flocculants or algaecides?

Yes, but keep in mind that with salt chlorination the amount of other chemicals the pool water needs is drastically reduced.


Innowater Products

Salt Chlorinators

Are salt chlorinators suitable for private and public pools?

Yes. At Innowater we manufacture salt chlorinators designed for all types of pools and different water volumes, so they can be used in private pools as well as public pools, hotels and sports facilities.

Is it difficult to install a salt chlorinator?

No. Salt chlorinators are designed for simple installation in the pool filtration circuit, and their subsequent operation is practically automatic.

Can a salt chlorinator be cleaned?

Yes, in fact it is highly recommended. Although Innowater salt chlorinators are self-cleaning, it is generally important to clean the chlorinator’s electrolytic cell from time to time to remove limescale or other substances that may have adhered to it. Never scrape or use metallic or aggressive elements that may scratch the cell surface. We explain how to keep the electrolytic cell in perfect condition.

When should I replace the electrolytic cell in my salt chlorinator?

Innowater salt chlorinators alert you when the cell is not working properly, whether because of dirt or wear. It is in the latter case that the cell must be changed, which is extremely simple. Our cells have a service life of around 20,000 hours of use, although in many cases we have found equipment still operating optimally beyond that number of hours.

What is the difference between a domestic and an industrial salt chlorinator?

In addition to its size and capacity, a domestic salt chlorinator is designed to meet the disinfection needs of a private pool. An industrial salt chlorinator, by contrast, is intended for intensive use in medium-sized or large public pools, depending on the model.

Does a salt chlorinator require maintenance?

Maintenance on a salt chlorinator is minimal. It mainly consists of:

  • Checking the cell periodically.
  • Cleaning the cell when necessary.
  • Checking salt and pH levels.

Compared with traditional systems, salt chlorination is a much more convenient option, as well as an automated one.


SMC Salt Chlorinator

What type of pools is the Innowater SMC Salt Chlorinator recommended for?

The Innowater SMC is a salt chlorinator mainly intended for private pools of up to 200 m3. SMC is the domestic equipment range, from a model such as the SMC10, with a production of 10 g Cl2 / h, up to the SMC50 model, with a production of 50 g Cl2 / h.

Does the SMC salt chlorinator include automatic dosing?

The basic model does not, but there are alternatives to complement it with a pH and/or redox controller, including wireless options.

How long does it take to install an SMC salt chlorinator?

It all depends on access and the space available in the filtration room. It does not usually take more than half a day.

How long does the electrolytic cell of the SMC salt chlorinator last?

The service life of the cell is estimated to reach 20,000 hours of use. In some cases, it has even been higher.

Is the Innowater SMC salt chlorinator difficult to use?

Quite the opposite. Many professionals regard the SMC model as the most efficient, durable and easy-to-use chlorinator on the market.

SMC-M Salt Chlorinator

What type of pools is the Innowater SMC-M Salt Chlorinator recommended for?

The Innowater SMC-M is a high-capacity salt chlorinator specially designed for use in medium-sized public pools and intensive-use installations. The SMC-M range includes models with output ranging from 75 to 180 g Cl2 / h.

Does the SMC-M salt chlorinator require an automatic control system?

Innowater recommends the complementary use of a pH and redox (ORP) control system across its entire range of industrial salt chlorinators, including the SMC-M line.

How long does the electrolytic cell of the SMC-M salt chlorinator last?

As of today, there are public pool installations using this chlorinator that have already exceeded 20,000 hours of use.

SMC-H Salt Chlorinator

What type of pools is the Innowater SMC-H Salt Chlorinator recommended for?

The SMC-H range is recommended for all types of large public pools with intensive use. The SMC-H salt chlorinator range includes models with output ranging from 250 to 1000 g Cl2 / h.

Does the electrolytic cell need to be replaced in an Innowater SMC-H salt chlorinator?

In most cases, depending on the use and maintenance of the electrodes, the cell will eventually need to be replaced.

Control and Dosing

What is a pool control and dosing system?

A pool control and dosing system is equipment capable of automatically measuring and regulating key water parameters, such as pH and disinfectant level. Thanks to sensors and dosing pumps, these systems automatically adjust the products needed to keep pool water balanced and safe.

Why is it important to control the pool water pH?

The pH of the water directly affects chlorine effectiveness and swimmer comfort. An incorrect pH can cause eye and skin irritation, cloudy water, algae growth or limescale deposits. Automatic systems allow pH to be kept continuously within the ideal range.

What is Redox (ORP) control in swimming pools?

Redox or ORP control measures the oxidation potential of the water, a direct indicator of its disinfecting capacity. This parameter shows whether the chlorine level is sufficient to eliminate bacteria and microorganisms. Automatic systems adjust chlorine production to maintain the optimum disinfection level.

Can control systems be used with salt chlorination?

Of course. Control and dosing systems are the perfect complement to salt chlorination, as they allow pH to be regulated automatically and the disinfecting capacity of the water to be monitored. This optimises salt chlorinator performance and improves water quality.

Are control systems mandatory in public pools?

Under many health regulations, public and communal-use pools must have continuous measurement and control systems for parameters such as pH and chlorine. Automatic equipment makes compliance with these regulations easier and guarantees consistent water quality.

What are the advantages of automatic dosing compared with manual maintenance?

Automatic systems offer multiple advantages:

  • Continuous control of water quality.
  • Reduced use of chemical products.
  • Less manual maintenance.
  • Greater safety for swimmers.
  • Savings in time and operating costs.

Can pools be controlled remotely?

Yes. Advanced systems, such as those developed by Innowater, allow the pool to be monitored and managed in real time, controlling parameters such as pH, chlorine or Redox and automatically adjusting the equipment from centralised systems.

Monitor Controller

Why is it important to control free chlorine in a public pool?

Free chlorine is responsible for eliminating bacteria, viruses and microorganisms present in the water. Keeping its concentration within the proper range ensures a healthy, safe pool and prevents health problems.

Is this system suitable for public pools?

Yes. The Innowater Monitor Controller is specially designed for public pools, hotels and sports centres, where regulations require constant control of water parameters.

Can the controller be integrated into building management systems?

Yes. The system can incorporate Modbus communication and remote monitoring, allowing it to be integrated into centralised control systems or facility management platforms.

What are the advantages of automatic water dosing?

Automatic dosing allows you to:

  • Keep the water balanced continuously.
  • Reduce the use of chemicals.
  • Avoid manual dosing errors.
  • Guarantee water quality at all times.

pH Redox Controller

What is a pH-Redox controller for swimming pools?

A pH-Redox controller is a device that continuously measures the pH and Redox potential (ORP) of pool water and automatically regulates the dosing of chemical products in order to keep water parameters within the ideal range.

Why is it necessary to control the pH of pool water?

Water pH directly affects chlorine effectiveness and swimmer comfort. If the pH is too high or too low, it can cause eye irritation, cloudy water, algae growth or limescale deposits.

What does Redox potential (ORP) measure?

Redox potential or ORP measures the disinfecting capacity of the water. When it has an appropriate value relative to the chlorine level, it is sufficient to eliminate bacteria, viruses and microorganisms present in the pool.

Is the pH-Redox controller compatible with salt chlorination?

Of course. pH-Redox controllers are the ideal complement to salt chlorination systems, as they allow the chlorine production of the salt chlorinator to be optimised and the water to be kept in perfect condition automatically.

Does a pH-Redox regulator require maintenance?

Yes, although its maintenance is quite simple. It consists of:

  • Cleaning and checking the probes periodically.
  • Performing periodic calibrations.
  • Replacing the peristaltic tube when necessary.

This will ensure accurate measurement of water parameters and optimum system performance.

Can an automatic controller be integrated with other management systems?

Yes. Advanced models allow Modbus communication, wireless connection and remote monitoring, making integration into management systems for public pools, hotels or sports centres easier.

Are these types of systems useful for public pools?

They are not only useful but highly recommended. In public and communal-use pools, it is essential to maintain continuous control of water parameters. These automatic controllers help meet health regulations and guarantee safe disinfection.


Automation

What is pool automation?

Pool automation is a system through which we can automatically control the pool’s main equipment, such as filtration, water disinfection, pH control, lighting or heating. Thanks to sensors and smart controllers, the system can keep pool water in optimum condition without the need for constant manual adjustments.

What can be automated in a pool?

Many functions can be automated in a pool to make it more efficient and reduce maintenance, with minimal intervention on our part. For example:

  • Chlorine and pH control.
  • Filtration operation.
  • Salt chlorinators.
  • Dosing pumps.
  • Lighting.
  • Water temperature.
  • Water quality monitoring.
  • Heat pump.
  • Pool cover.

Can an existing pool be automated?

Yes, of course. The vast majority of pool automation systems can be installed in both new and existing pools. Once the equipment has been chosen, it is integrated into the pool’s hydraulic and electrical systems. All of this is done conveniently and simply, modernising the operation of the installation.

Can I control my pool from my mobile phone?

Yes. Many automation systems allow the pool to be controlled from a mobile app or an online platform. From your smartphone, you can check parameters such as chlorine level, pH or water temperature, as well as activate or schedule different pool equipment.

What are the advantages of automating a pool?

As you can imagine, the advantages of automation are numerous:

  • Improves water quality control.
  • Reduces maintenance time.
  • Optimises energy consumption.
  • Reduces the use of chemicals.
  • Allows remote, real-time control.

These and many other reasons make automation an increasingly popular solution in both private pools and public facilities.


Loxone Platform

What is Loxone and what is it used for in a pool?

Loxone is an intelligent automation platform that allows different pool systems to be managed and controlled, such as filtration, lighting, heating, water treatment or automatic covers, all from a single interface.

What pool elements can be automated with Loxone?

With Loxone it is possible to automate multiple functions, such as switching on the filtration pump, regulating water temperature, lighting the pool and surrounding area, controlling the cover or even integrating with water treatment systems.

Can the pool be controlled from a mobile phone with Loxone?

Yes. The Loxone platform allows all pool systems to be controlled from a mobile app or web interface, making supervision and remote management easier anytime and from anywhere.

Can Loxone be integrated with other home systems?

Yes. One of Loxone’s main advantages is that it allows the pool to be integrated into the home’s overall smart automation system, coordinating its operation with outdoor lighting, climate control, security or energy management.

What advantages does pool automation with Loxone provide?

Automation with Loxone improves energy efficiency, simplifies maintenance, optimises equipment performance and enables smart control that increases comfort and safety in pool use.


Pool Types

Private Pools

What is salt chlorination in pools?

Salt chlorination is a disinfection system that automatically generates chlorine from salt dissolved in pool water through an electrolysis process. This system eliminates bacteria, viruses and algae without the need to manually add chemical chlorine, keeping the water clean, clear and more comfortable for swimming.

How much salt does a pool with salt chlorination need?

A pool with a salt chlorinator normally needs between 4 and 6 grams of salt per litre of water (check with the manufacturer). This concentration is very low compared to seawater, so it is barely noticeable when swimming and is much more comfortable for skin and eyes.

What advantages does salt chlorination have over traditional chlorine?

Salt chlorination in private pools offers multiple advantages:

  • Softer, more pleasant water for the skin.
  • Less irritation to eyes and mucous membranes.
  • Automatic elimination of bacteria and microorganisms.
  • Drastic reduction in handling chemical products.
  • More comfortable and easier maintenance.
  • Less chlorine smell in the water.

Is it difficult to install a salt chlorinator in a private pool?

Not at all. Installing a salt chlorinator is relatively straightforward and can be done in both new and existing pools. The system is installed in the pool’s filtration circuit and operates automatically once configured.

Is it difficult to install a salt chlorinator in a private pool?

Not at all. Installing a salt chlorinator is relatively straightforward and can be done in both new and existing pools. The system is installed in the pool’s filtration circuit and operates automatically once configured.


Public Pools

Can a public pool with a traditional chlorine system switch to salt chlorination?

Yes, of course. Practically any public pool can easily adapt a salt chlorination system to its installation.

Is salt chlorination suitable for any type of public pool?

Yes. A salt chlorinator is ideal for use in hotel and resort pools, schools, sports centres, residential communities, care homes, municipal facilities and more.

Is it legal to use salt chlorination in public pools?

Yes. Salt chlorination is permitted in public pools as long as the disinfection and control levels established by current health regulations are met.

Is salt chlorination suitable for large volume pools?

Yes. There are salt chlorinators designed specifically for public pools and large facilities, capable of generating large amounts of chlorine continuously to ensure correct water disinfection, even with a high bather load.

Is salt chlorination suitable for large volume pools?

Yes. There are salt chlorinators designed specifically for public pools and large facilities, capable of generating large amounts of chlorine continuously to ensure correct water disinfection, even with a high bather load.


Camping Pools

Is an Innowater SMC salt chlorinator suitable for a campsite pool?

The most suitable salt chlorinator models for camping pools are usually the industrial models from the SMC-M and SMC-H ranges. Given the typical size of these pools and their intensive use, models from the domestic SMC salt chlorinator range are likely to fall short in performance.

Is a salt chlorinator sufficient to keep a campsite pool in perfect condition?

If the model is properly sized to the pool volume, yes. In any case, we must not forget the need to monitor pH and redox (ORP) levels in the water. We recommend installing automatic control systems such as the Innowater Monitor controller.

How much salt does a campsite pool need?

Initially, it will depend on the volume of water in the pool. It will be between 4 and 6 grams of salt per litre. Afterwards, you will only need to add more salt, in the same proportion, based on the amount of water that has evaporated from the pool — or in other words, based on how much new water has been added.

Can any campsite switch its pool from a traditional system to salt chlorination?

In our experience, to date we have not come across any campsite that could not make that change.

Can any campsite switch its pool from a traditional system to salt chlorination?

In our experience, to date we have not come across any campsite that could not make that change.


Rural House Pools

Is it necessary to install an automatic control and dosing system in a rural house pool with salt chlorination?

It is not mandatory, but it is highly recommended. It helps us to almost forget about the daily maintenance of the pool.

What is better for a rural house pool, a domestic or industrial salt chlorinator?

In most cases, given the usual size of this type of pool, a domestic salt chlorinator is sufficient. If the pool is very large and/or local regulations have other requirements, it may be necessary to use an industrial salt chlorinator model.

Is it easy to install a salt chlorinator in a rural house pool?

It is usually very straightforward. Generally, it takes no more than half a day to install (domestic salt chlorinator). It will depend mainly on the space available in the pump room or machine room.

Is it worth investing in a salt chlorinator for a rural house pool?

Absolutely. Just the fact of having better water quality and reducing maintenance would be enough. But also, the investment in acquiring the chlorinator is quickly recovered. Even more so in pools that are not very large.

Is it worth investing in a salt chlorinator for a rural house pool?

Absolutely. Just the fact of having better water quality and reducing maintenance would be enough. But also, the investment in acquiring the chlorinator is quickly recovered. Even more so in pools that are not very large.


Sports Centre Pools

Why is salt chlorination ideal for swimmers and athletes?

When a swimmer spends long periods in pool water, the more natural and gentle the water, the better. Salt chlorination is not aggressive on skin or hair, and helps avoid annoying eye irritation. That is why it is an optimal alternative for athletes and swimmers.

Does it take long to recover the investment of installing a salt chlorinator in a sports centre, spa or multi-sports facility pool?

This type of public pool is usually the one that recovers its investment most quickly. This is due to the large number of users and intensive use. Furthermore, salt chlorination serves as an attraction for swimmers who prioritise this type of pool over traditionally chlorinated ones.

How can I switch from traditional chlorine to salt chlorination in a sports centre pool?

The process is usually quite straightforward. First, determine the most suitable model for the installation (digital calculator). Then, visit the pool machine room to assess the available space and define the installation process, which usually takes no more than 1 or 2 days.

Why install a control and dosing system in a sports centre pool with salt chlorination?

The reasons are varied, but the main one is: automating water maintenance, minimising the need for constant supervision while keeping the water in optimal condition.

Why install a control and dosing system in a sports centre pool with salt chlorination?

The reasons are varied, but the main one is: automating water maintenance, minimising the need for constant supervision while keeping the water in optimal condition.


School Pools

Is salt chlorination cost-effective for a school?

Of course. With a salt chlorinator, the school not only invests in pool safety and health. With salt chlorination, the school is investing to significantly reduce maintenance costs. It also improves its corporate image by committing to a sustainable, environmentally friendly system.

Is salt chlorination suitable for any school pool?

Yes, except in the case where the pool is made of exposed stainless steel. In this case, salt chlorination is not recommended, given the damage it can cause to the pool structure.

Can a school pool treated with traditional chlorine switch to salt chlorination?

Yes. Our systems are compatible with existing installations, and the installation of a salt chlorinator can be carried out in practically all cases in a fairly straightforward manner.

Is the investment in a salt chlorinator for a school quickly recovered?

The speed of recovery will depend on multiple factors: pool size, intensity of use, etc.


Community Pools

Is it easy to switch from traditional chlorine to salt chlorination in a community pool?

The change is very straightforward. Generally, the main aspect to consider is the space available in the machine room to install the corresponding salt chlorination system.

How long does the changeover take?

The installation process can vary depending on the model, access and other factors. Usually, the installation takes no more than 1 or 2 days.

Does salt chlorination comply with the regulations applicable to community pools?

Yes, of course. It is worth remembering that this is an efficient and sustainable system in which chlorine is generated naturally through electrolysis.

Is salt chlorination recommended for small community pools with few residents?

Absolutely. Just having the highest quality water and drastically reducing maintenance are reasons enough. The important thing is to define which model is the most suitable, depending on the pool volume.

Is salt chlorination recommended for small community pools with few residents?

Absolutely. Just having the highest quality water and drastically reducing maintenance are reasons enough. The important thing is to define which model is the most suitable, depending on the pool volume.

How long does it take to recover the initial cost of installing a salt chlorinator in a community pool?

Although this depends on different factors, in community pools with intensive use, the payback period is usually between 3 and 5 years.


Hotel Pools

Is salt chlorination cost-effective for a hotel establishment?

Absolutely. Thanks to salt chlorination, we not only make the swimming experience more comfortable and healthy for our guests, but at the same time we greatly reduce pool maintenance and the need for other water chemicals. We maintain the highest water quality for longer with an efficient and sustainable system, whose initial investment is quickly recovered.

Is salt chlorination suitable for any type of hotel pool?

Yes, with the sole exception of exposed stainless steel pools, whose manufacturers do not recommend the use of salt chlorinators in this type of pool.

When is the purchase of a salt chlorinator for a hotel recovered?

It depends on several factors: pool water volume, equipment purchased, usage time (summer, all year round…), type of use (occasional, intensive…). Usually, it ranges from 2 to 5 years, depending on the factors mentioned above.

Can I use any type of salt in a hotel pool?

As with other pools, we can use any type of salt, bearing in mind that the higher the purity, the cleaner the water, fewer residues and less maintenance.

Can I use any type of salt in a hotel pool?

As with other pools, we can use any type of salt, bearing in mind that the higher the purity, the cleaner the water, fewer residues and less maintenance.

Recommended levels of different water parameters in hotel pools

  • pH: Between 7 and 7.4
  • Redox (ORP): Between 650 and 750 mV (up to 800 mV with intensive use)
  • Free Chlorine: Between 0.5 and 2 mg/L (ideally above 1 mg/L)
  • Combined Chlorine: Less than or equal to 0.6 mg/L

Municipal Pools

How can I switch a municipal pool treated with traditional chlorine to salt chlorination?

The process is quite straightforward. After studying the pool characteristics and defining the most suitable salt chlorinator model, we simply need to make some minor adjustments to the existing filtration system and connect the salt chlorinator to the corresponding pipework.

Does a municipal pool with salt chlorination still need other chemicals?

Salt chlorination drastically reduces the need for other chemicals, but does not eliminate it entirely.

Is it necessary to continue monitoring pH and Redox levels in a municipal pool once a salt chlorinator is installed?

Yes. A salt chlorinator does not control and balance these values. We recommend the use of automatic control systems for this purpose.

Recommended levels of different water parameters in municipal pools:

  • pH: Between 7 and 7.4.
  • Redox (ORP): Between 650 and 750 mV (up to 800 mV with intensive use).
  • Free Chlorine: Between 0.5 and 2 mg/L (ideally above 1 mg/L).
  • Combined Chlorine: Less than or equal to 0.6 mg/L.

Recommended levels of different water parameters in municipal pools:

  • pH: Between 7 and 7.4.
  • Redox (ORP): Between 650 and 750 mV (up to 800 mV with intensive use).
  • Free Chlorine: Between 0.5 and 2 mg/L (ideally above 1 mg/L).
  • Combined Chlorine: Less than or equal to 0.6 mg/L.

Care Home Pools

Is salt chlorination recommended for elderly people?

Absolutely. Salt chlorination is the most recommended alternative for pools where people with greater sensitivity or more skin or eye problems swim, such as a care home.

Why is it beneficial for a care home to have its pool treated with salt chlorination?

The main reasons are safety and health for the swimmers. In addition, maintenance needs are reduced to a minimum. And it should be said, a pool with salt chlorination in a care home is also an important attraction for families.

Does a care home pool need a domestic or industrial salt chlorinator?

It will depend on the volume of water and the use of the pool and, above all, on the regulations in force in your municipality or region.

What are the recommended levels of different water parameters in care home pools?

  • pH: Between 7 and 7.4.
  • Redox (ORP): Between 650 and 750 mV (up to 800 mV with intensive use).
  • Free Chlorine: Between 0.5 and 2 mg/L (ideally above 1 mg/L).
  • Combined Chlorine: Less than or equal to 0.6 mg/L.

What are the recommended levels of different water parameters in care home pools?

  • pH: Between 7 and 7.4.
  • Redox (ORP): Between 650 and 750 mV (up to 800 mV with intensive use).
  • Free Chlorine: Between 0.5 and 2 mg/L (ideally above 1 mg/L).
  • Combined Chlorine: Less than or equal to 0.6 mg/L.


Technical Service

How is salt added and how often?

Salt is added directly into the pool basin. Before putting the unit into operation, run the pump until the salt is fully dissolved. Salt is not consumed in the process. You will only need to periodically make up for salt losses caused by filter backwashing, draining, etc.

What type of salt should be used? And how much?

Any type of common salt is perfectly suitable. If you use very unrefined salt, dirt or impurities may temporarily appear in your pool water, but in general this will not affect your chlorinator. The recommended amount of salt is 5 to 6 kg per m3 of water for unheated pools and 3 to 4 kg per m3 of water for heated pools (28–30ºC).

What is the recommended chlorine concentration in the water? And the pH?

The recommended residual chlorine concentration for private pools is around 1 ppm. If it is a public-use pool, this concentration is set by the regulations of each region and is usually around 1.5 ppm. For chlorine to be effective, the pH must always be between 7.0 and 7.6.

Can a disinfected pool lose chlorine after the water has been filtered?

If the filter is dirty, the amount of chlorine available in the water will decrease as it passes through it because it reacts with the organic matter it contains.

Is salt chlorination compatible with the use of chemicals such as flocculants or algaecides?

Any chemical product is compatible with salt chlorination, although in principle, if you use your salt chlorination system properly, you will not need to add any additional product.

Why doesn’t the chlorine level increase in the pool if the salt level is correct and the pH is properly regulated?

This usually happens in new pools or in pools where the water has recently been changed. Solar radiation and heat quickly break down the free chlorine in the pool water, so in pools with high sun exposure chlorine remains in the water for a very short time, even if the production rate is high. Also bear in mind that the chlorine produced by your chlorinator is pure and free of additives, which makes it especially reactive and, although this is one of its main advantages, it can lead to low concentration readings under these conditions. If you have difficulty maintaining a chlorine residual in the pool, you can use a chlorine stabiliser.

The unit indicates: “Low water level in cell” or “NO WATER FLOW”

Check that the cell is full and that water reaches its water sensor (a small metal rod at the top of the electrode holder). If not, check the pump flow rate, the filter and the pool water level.

The unit indicates “Low salt”, “Insufficient salt” or “Cell not detected”

This indication appears when the electrical current through the electrodes is lower than normal. It may be due to insufficient salt concentration, which should therefore be checked, but also to limescale deposits on the electrodes or air bubbles. If there is limescale, clean the cell and temporarily reduce the polarity period.

The water has taken on a greenish appearance

This is normally due to the proliferation of algae and other microorganisms favoured by an insufficient chlorine concentration. Check the filtration hours and the production level of your chlorinator. Keep in mind that no matter how much chlorine it produces, good filtration is essential to obtain crystal-clear water. Also remember that even if the chlorine concentration in the pool is sufficient, chlorine is ineffective above pH 7.6.

Limescale has appeared in my pool

The appearance of limescale in the pool is the result of hard water and a high pH. Limescale precipitates on the surfaces of the pool and the electrodes. By correcting the pH you will prevent deposits from forming.

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