ORP Redox pH controllers for swimming pools

The quality of pool water depends on several factors, with pH and Redox Potential (ORP) playing a key role. A good pH balance ensures bather comfort and the effectiveness of disinfectant products. Redox, meanwhile, measures the oxidizing power of water and indicates the effectiveness of disinfectants such as chlorine. Regulating these parameters helps achieve clear, clean, and healthy water, while avoiding problems with corrosion or algae growth. To simplify water treatment, automatic regulators are available that continuously adjust these levels without manual intervention.

How does a pH regulation system work?

A pH regulator is a device that continuously measures the pH level of the water and automatically adjusts it by injecting a corrective agent (pH+ or pH-). It is equipped with a probe that analyzes the pool water and sends the data to an electronic unit. When the pH deviates from the ideal value (generally between 7 and 7.4), the device activates a dosing pump that injects the necessary amount of product to adjust the level for automatic treatment.

This system allows for continuous maintenance of balanced water, without the need to manually test and add chemicals.

How does a Redox/ORP regulation system work?

A Redox regulation system, also known as ORP (Oxidation Reduction Potential), works by measuring the oxidation-reduction potential of pool water in real-time. This potential is a key indicator of the water's disinfecting capacity, especially concerning active chlorine. In other words, it automatically controls water quality to ensure optimal disinfection every day, without manual intervention.

This system relies on a Redox probe submerged in the filtration circuit. It sends precise information to a regulator which, based on the measured value, adjusts the amount of disinfectant by injecting liquid chlorine. This process maintains a constant and effective level of disinfection and extends the lifespan of your salt chlorinator.

Rain, for example, can affect water balance by diluting products or introducing contaminants. This is where the Redox system plays a crucial role in automatic regulation. As soon as a change is detected, the regulator reacts immediately to compensate, thus ensuring adapted treatment even in unstable weather conditions.

Redox does not replace pH control but perfectly complements it. The Redox potential acts as a global performance indicator for water treatment. By combining both systems, you get clear, healthy, and balanced water day after day, without overdosing or waste. This type of system is particularly useful for pool owners who desire automated and precise treatment, without having to count each dose or intervene manually after every shower.

Why choose an automatic regulator?

Automatic Redox and pH regulation offers several advantages:

• Time-saving: No more need to manually check and adjust pH and/or ORP.
• Increased precision: Measurements are constant, and adjustments are more accurate than manual dosing.
• Effectiveness of disinfectant products: A well-adjusted pH and ORP optimize the action of the disinfectant.
• Bathing comfort: Well-balanced water prevents eye and skin irritation.
• Equipment protection: Unstable Redox can damage your salt chlorinator and limit water disinfection. A poorly adjusted pH can damage linings, the pump, and filters.

A regulator is particularly recommended for pool owners who desire easy maintenance and consistently optimal water quality.

What are the advantages of a pH and ORP regulator?

Installing a regulation device offers several benefits:

• Complete automation: The device manages dosing entirely on its own.
• Chemical consumption: By maintaining stable pH and ORP, waste of correctives is avoided, and disinfectant savings are promoted.
• Reduction of algae and cloudy water problems: Well-adjusted pH and ORP prevent chemical imbalances, limit algae proliferation, and extend the lifespan of your equipment.
• Extended equipment lifespan: Unbalanced water can corrode equipment or lead to limescale deposits.

These advantages make the regulation system a profitable investment for any pool owner.

How to install an automatic regulation system?

Installing an automatic regulator is relatively simple and involves a few steps:

1. Choose the location: It should be installed after the filter and before the injection of disinfectant products.
2. Fix the casing: Generally near the technical room, sheltered from bad weather.
3. Install the pH/ORP probe: It should be placed in the filtration circuit, often on a dedicated probe holder.
4. Connect the dosing pump: It is connected to a container of chlorine or liquid pH corrector and injects the product into the water.
5. Electrical connection: The regulator connects to an outlet or directly to the pool's electrical panel.
6. Configure the equipment: After installation, the probe needs to be calibrated, and desired values set.

Correct installation ensures optimal functioning of the various components and a prolonged lifespan for the equipment.

What is the cost of a pH/ORP regulator?

The price of a regulator varies according to several criteria:

• Model and features: A basic pH OR ORP regulator costs between €200 and €400, while an advanced model with both pH AND Redox regulation can exceed €700.
• Connectivity: Some equipment can be connected via Wi-Fi or Bluetooth to your smartphone to analyze and regulate water balance wherever you are.

It is important to note that investing in automatic regulation equipment remains an economical choice in the long term: guaranteed savings on chemical products!

How to calibrate a pH/ORP regulator?

Calibrating a regulator is essential to ensure precise measurements. Here's how to do it easily:

1. Prepare calibration solutions: These are solutions with known pH/ORP (e.g., for pH: 4 and 7; for ORP: 650 mV).
2. Immerse the probe in the associated solution: Wait for the device to stabilize the measurement and validate.
3. Rinse the probe: Use demineralized water to avoid interference.
4. Check accuracy: Once calibrated, the device should display correct values according to the actual pH/ORP of the water.

This operation should be performed regularly and carefully, approximately once a month, to ensure proper functioning of the regulator.

What type of pH should be used for the pool?

There are two types of pH correctors:

• pH+ (baking soda or sodium carbonate): Used when the pH is too low (below 7).
• pH- (sulfuric acid or diluted hydrochloric acid): Used when the pH is too high (above 7.6).

The choice of corrector depends on the type of water treatment and the pool lining. For example:

• For saltwater pools, it is recommended to use a pH corrector without sulfuric acid, as it can damage the salt chlorinator.
• For liner pools, a pH- based on hydrochloric acid is preferable to avoid sulfate deposits.

By maintaining a pH between 7 and 7.4, bather comfort and the effectiveness of treatment products are optimized.

A pH regulator manages all of this automatically, without the risk of human error. It is an ideal solution for enjoying consistently balanced water and avoiding problems related to pH fluctuations.