Salt Chlorine Generator – Standards-Compliant, Healthy Swimming Pool Systems

Salt Chlorine Disinfection System

Calculation Report

The calculation selection table included in this report calculates the required capacity of the salt chlorine (electrolysis) disinfection system for your swimming pool, as well as the required salt amount.

As input data, pool volume, target free chlorine dosage, daily operating time, and safety margin are used; as a result, the device’s hourly production capacity (g/hour) and the salt quantity required for initial filling (kg) are determined.

The calculations are based on a standard salt chlorine generator with titanium (MMO-coated) electrodes and typical operating conditions (pH 7.2–7.6; ORP ~650–750 mV; salinity 3–5 kg/m³). For outdoor or heavily used pools, increased load during the summer season is taken into account, and a safety margin of 20–30% is recommended for reliable operation.

Salt Chlorine Disinfection System • Calculation Report

Accurately determining the capacity of a salt chlorine generator in swimming pools is a critical step for sustainable disinfection and operational efficiency. However, manually calculating the required capacity can be challenging for users due to the number of variables involved. For this reason, the Salt Chlorine Generator Capacity Calculation Tool has been developed to reliably estimate the required device capacity by taking into account key parameters such as pool volume, daily operating time, target free chlorine level, and safety factor. The results are presented to the user in tabulated form within seconds and, with the option to download the report, also contribute to the documentation process.

Inputs

Pool Type
Purpose of Use
Pool Volume (m³)
Daily Operating Time (hours/day)
Target Free Chlorine (ppm)
Design Dose (g/m³·day)
Safety Factor (%)
Target Salt Concentration (g/L ≈ kg/m³)
Capacity per Cell (g/hour)

Note: Fixed values are intended for initial capacity estimation; they may be revised according to site conditions.

Results

Chlorine Demand (daily)	— g/day
Device Capacity (min.)	— g/hour
Recommended Capacity (+safety)	— g/hour
Required Number of Cells (approx.)	— units
Required Salt Amount (initial filling)	— kg

Formulas (summary):

Daily Chlorine (g/day) = Volume (m³) × Design Dose (g/m³·day)
Min. Capacity (g/hour) = Daily Chlorine / Daily Operating Hours
Recommended Capacity = Min. Capacity × (1 + Safety %)
Salt (kg) ≈ Volume (m³) × Salt Ratio (kg/m³)

Result & Recommendation:

—

Recommended Capacity:

The device may not always operate at maximum efficiency. Electrodes lose performance over time. Chlorine production decreases if the salt level drops. Usage intensity may vary (for example, it increases in summer). Therefore, a safety margin of at least 10% should be applied when determining the device capacity.

Criteria:

Electrode type	Titanium electrode (long lifespan)
Automatic cleaning system	Reverse polarity preferred
pH and ORP integration	Integrated systems are recommended
Salt level sensor	Built-in sensor recommended
Alerts and safety systems	Low salt, low current, high temperature, etc.

Informative Note (Technical)

The calculations in this application are based on design assumptions commonly used in industry practice. Current regulations in Turkey define target ranges for free chlorine; however, there is no single fixed “official value” for the daily chlorine production dose (g/m³·day). The information below should be verified after equipment selection through on-site measurements (especially ORP/pH, bather load, and daily chlorine consumption) and adjusted if necessary.

Target Free Chlorine Ranges (summary)

Outdoor swimming pools: approximately 1–3 ppm
Indoor swimming pools: approximately 1–1.5 ppm
SPA / Jacuzzi: in practice ≥ 3 ppm

Main Factors Affecting Daily Chlorine Demand

Bather load (persons/day) and usage profile
Turnover time (filtration duration/capacity)
Water temperature and UV/sun exposure (outdoor vs. indoor)
Use and dosage of stabilizer (cyanuric acid)
Operational practices and the target free chlorine level

“Preset” Logic Used in This Application

Villa / Private Use: dose ~1.5 g/m³·day, operation ~8 h/day, safety ~10%
Swimming Pool (general): dose ~2.5 g/m³·day, operation ~12 h/day, safety ~15%
Hotel / Public Use: dose ~3.5 g/m³·day, operation ~16 h/day, safety ~20%
SPA / Thermal: dose ~5.0 g/m³·day, safety ~25%

Summary: The values on this page are intended for rapid pre-sizing of the equipment class. Final selection should be confirmed based on actual operating data and on-site measurements.

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