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Easily size the right saltwater chlorinator cell capacity and initial salt replenishment for your pool in seconds.
A properly sized salt chlorine generator keeps your pool water continuously sanitized with low operating overhead. This tool determines cell output (g/h) and initial salt charging amounts based on pool volume, bather load, and daily pump run hours for MMO-coated titanium electrolytic cells.
Standard swimming pools require 3.5 to 4.0 kg of refined, non-iodized salt per cubic meter (3500–4000 ppm). Electrolytic cell capacity is engineered at 0.25 to 0.35 g/h of free chlorine production per m³ for residential pools, and 0.45 to 0.60 g/h per m³ for commercial pools running 8–10 daily filtration hours.
Daily chlorine output is computed by multiplying pool volume (m³) by standard design dosage rates (g/m³/day) calibrated to bather demand.
Dividing daily demand by planned filtration operating hours establishes base cell capacity (g/h), with an engineering safety margin added for peak summer load.
Pool volume is multiplied by targeted salinity levels (typically 3.5–4.0 g/L or kg/m³) to establish the total pure pool grade salt required upon initial filling.
Enter basic parameters and calculate recommended cell output.
Initial Salt Charge: 200 kg
0,0 g/h
Recommended Generator Capacity
Min Output: 0,0 g/h (incl. +20% margin)
0 kg
Initial Salt Load
0 x 25 kg pure pool salt bags
Electrolytic chlorinator output must be calibrated to pool volume, ambient water temperature, and daily filtration hours. Use the technical engineering matrix below to select the appropriate titanium electrode rating.
| Facility Type | Volume (m³) | Electrode Rating | Target Salinity | Filtration Time | Engineering Note |
|---|---|---|---|---|---|
| Private Residential / Villa (Low Bather Load) | 25 – 60 m³ | 12 – 18 g/h | 3.5 – 4.0 g/L (kg/m³) | 6 – 8 hours/day | Ideal for family swimming, stable chlorine retention, and minimal power consumption. |
| Large Residential / Luxury Estate Pool | 60 – 120 m³ | 20 – 35 g/h | 4.0 – 4.5 g/L (kg/m³) | 8 – 10 hours/day | Provides surplus chlorine buffering capacity during intense summer solar exposure. |
| Community / Boutique Hotel Pool (Medium Load) | 100 – 250 m³ | 45 – 80 g/h (Dual Cell) | 4.0 – 5.0 g/L (kg/m³) | 12 – 16 hours/day | Recommended alongside automated pH feedback dosing for heavy bather influx. |
| Commercial Resort / Aquatic Facility / Water Park | 250 – 600+ m³ | 100 – 250+ g/h (Industrial) | 4.5 – 5.5 g/L (kg/m³) | 18 – 24 hours/day | Modular titanium electrode arrays with integrated ORP/amperometric telemetry. |
Follow this engineering protocol to protect your electrolytic cell, achieve uniform salinity, and maintain crystal-clear water.
Prior to adding salt, ensure pool water pH is calibrated to 7.2–7.6, total alkalinity to 80–120 ppm, and calcium hardness to 200–400 ppm using precision test kits.
Principle: Elevated pH accelerates calcium scaling on titanium electrodes and reduces chlorine generation efficiency.
Evenly distribute calculated pool-grade salt (≥99.5% pure, non-iodized NaCl) across the shallow and deep ends. Run the primary circulation pump continuously for 24 hours to achieve full dissolution.
Principle: Never pour salt directly into skimmers or balance surge tanks; broadcast across the basin floor and brush.
Once salinity tests confirm target levels, power on the generator controller. Set initial production to 60–80% for the first 48 hours until free available chlorine stabilizes between 1.5 and 3.0 ppm.
Principle: Never turn on the electrolytic cell before salt is 100% dissolved, as high localized density can damage cell coatings.
Although modern units utilize self-cleaning reverse polarity cycles, inspect titanium plates monthly for calcium bridging. Clean with diluted cell cleaner when scaling occurs.
Principle: Never scrape titanium plates with metallic brushes or sharp scrapers; this strips the ruthenium oxide catalyst.
Dissolved pool salt (typically 3–5 kg/m³ or ~3,000–5,000 ppm) passes through electrolytic titanium cell plates, converting sodium chloride into free available hypochlorous acid via electrolysis. This provides continuous automated sanitization without manual dry chlorine handling.
Initial salt charging is determined by multiplying pool volume (m³) by target salinity (g/L or kg/m³). For example, a 50 m³ pool targeting 4.0 g/L requires approximately 200 kg of high-purity pool grade salt. The calculator computes this requirement instantly alongside 25 kg bag requirements.
Cell sizing depends on pool volume, bather load, water temperature, and daily filtration run hours. While private residential pools require ~1.5–2.0 g/m³/day, commercial hotel pools with higher organic loads require 3.5 to 5.0 g/m³/day.
Yes. The electrolytic byproduct sodium hydroxide (NaOH) causes water pH to naturally drift upward over time. Consequently, integrating an automated pH reducer dosing pump alongside the salt chlorinator is strongly recommended.
High-grade titanium plates coated with ruthenium/iridium oxide typically deliver 5,000 to 15,000 operating hours (approx. 4–7 swimming seasons) when water balance is maintained and self-cleaning polarity reversal operates reliably.