Metering pumps

Swimming Pool Dosing Pumps: Accurate and Automated Chemical Control

Dosing pumps for swimming pools are devices designed to automate the dosing of chemical products in the water, with the objective of keeping in balance the main parameters that guarantee a clean, safe and healthy swimming pool.

These parameters, mainly the level of chlorine and pH, are essential to prevent the proliferation of algae, bacteria and other microorganisms, as well as to protect the equipment and improve the swimming experience.

why choose these products?

Investing in a dosing pump ensures a healthy and hassle-free bathing experience:

• Dosing accuracy: They prevent over- or under-dosing, ensuring the ideal water balance at all times.
• Long-term cost savings: By applying only the necessary amount of product, chemical waste is minimized.
• Reduced manual maintenance: Automates tasks that otherwise require daily attention.
• More stable water quality: Avoid fluctuations in pH or disinfectant levels, which can cause irritation or bacterial growth.

when is it recommended to install a dosing pump?

It is especially recommended for:

• Community or public swimming pools.(Communities , Campings, Rular houses)
• Users who want to minimize manual maintenance.
• Customers concerned about product savings and water care.

how does a dosing pump work?

The operation of a dosing pump is simple but very efficient. The equipment is in charge of:

• Aspirating the chemical product from a tank or canister (usually liquid chlorine or acid).
• Inject said product into the hydraulic circuit of the pool, normally at the filter outlet, so that it is correctly distributed throughout the installation.

This process can be carried out:

• Continuously, with regulated flow rate. Without control of the parameter
• In an automated way, depending on the reading of a probe or sensor. With parameter control

Types of metering pumps available:

Motor type

• Peristaltic: Ideal for low viscosity liquid products. They operate by rotating a roller on a flexible tube. Ideal for private pools
• Electromagnetic: More robust and precise, ideal for liquid chlorine or pH regulators. They adjust the flow rate by means of electrical impulses. Ideal for private pools for public use

Outstanding functions according to the model of dosing pump

When choosing a metering pump for your pool, there are three key features that define the functions of each model and can help you make the best choice depending on the type of use or automation you want.

Parameter control (pH and redox)

One of the first decisions to make is whether or not the metering pump includes chemical parameter control.

• With parameter control: These pumps incorporate probes (pH or redox) that measure in real time the state of the water and dose the chemical product automatically according to the value that has been programmed as optimal.
• No parameter control: The pump doses at a fixed rate (set by the user) without taking into account the actual water conditions. It is more economical, but requires more frequent checks.

Type of setting: digital vs. analog

Depending on the type of interface and control they offer, pumps are divided into two main groups:

• Digital dosing pumps: they allow fine and very precise adjustment of the amount of product to be dosed. They usually include screens or keyboards to set exact parameters. They are ideal for those seeking greater control and chemical efficiency.
• Analog dosing pumps: They are adjusted by means of a potentiometer (rotating wheel) that sets a dosing percentage. They are simpler, with a very basic operation. Perfect for installations where less precision is required or the budget is tighter.

External signal for pulse counter

Some models are prepared to work in synchrony with a pulse counter, which allows a dosage proportional to the volume of water circulating through the installation.

how does it work?

• The impulse counter detects the passage of water and emits electrical signals.
• The pump receives these signals and doses a predetermined quantity for each impulse.
• Example: for every 100 liters of water passing through, the pump injects "X" milliliters of product.

This type of installation is recommended in conjunction with the compatible pulse counters available in our catalog.

Buying Guide: What is the best metering pump for your pool?

When choosing a dosing pump, our recommendation is clear: Always opt for models with parameter control (pH or redox/ORP). Pumps without parameter control have become obsolete for most cases, as they do not guarantee accurate dosing and require frequent manual adjustments.

Recommendations according to the type of installation

Below, we will guide you according to the type of pool or installation:

1. Private pools or private pools for public use (small)

Recommended pump type: peristaltic with pH and redox (chlorine) control

Advantages:

• Compact and easy to install.
• Accurate and automatic dosing.
• Easy maintenance.

Example of use:

Swimming pools of villas, rural houses, small hotels or lodgings with swimming pool.

2. Community pools, public pools, campgrounds or larger facilities

Recommended pump type: Electromagnetic with pH or redox control

Advantages:

• Greater robustness and durability.
• Suitable for large volumes of water.
• More resistant to continuous and demanding work.

Example of use:

Neighborhood communities, municipal facilities, sports centers, campgrounds.

3. Drinking water installations or storage tanks

Recommended pump type: Metering pump with external signal for impulse meter

Advantages:

• Dosing proportional to the flow rate.
• Simple but reliable system.
• Ideal for dosing products according to the water actually consumed or treated.

Example of use:

Drinking water systems in communities, farms, rural homes or small DWTPs.