After a period of use, swimming pool water will be contaminated with bacteria, algae, moss and other dirt. To ensure a safe and clean swimming environment, the use of high-quality chemicals such as NaOH , and Javen is an effective and quick solution. Depending on the water condition and the purpose of use, you can choose one of these two chemicals or combine both.
Swimming Pool Water Treatment With Javen
What is Javen?
- Chemical formula: NaOCl (Sodium Hypochlorite).
- Liquid, light yellow or light green, has strong bleaching and disinfecting properties.
- When dissolved in water, Javen produces Hypochlorous Acid (HOCI) – powerful disinfectant, helps eliminate bacteria, viruses and algae.
Application of Javen in Swimming Pool Water Treatment
- Disinfect and purify water.
- Removes algae, microorganisms, and unpleasant odors.
- Side effects NaOH helps increase the pH of water.
Javen User Guide
- Dilute Javen according to the ratio 1 liter of Javen 12% for 10m³ of swimming pool water to achieve residual chlorine concentration from 0.5 - 1 ppm.
- Check the pH of the water. If the pH is high, use Hydrochloric Acid (HCl) dilute to reduce pH and balance to standard level (7.2 – 7.6).
Safety Notes When Using Javen
- Do not add Javen or HCl directly into swimming pool water, dilute before use.
- Wear gloves and goggles to avoid direct contact.

Swimming Pool Water Treatment with NaOH
What is NaOH?
- Chemical formula: NaOH (Sodium Hydroxide).
- Liquid, viscous, opaque white, easily soluble in water.
- Main effect: Increases water pH, helps prevent equipment corrosion and protects swimmers from skin irritation.
Applications of NaOH in Swimming Pool Treatment
- Use when water pH is lower than 7.2, helps balance pH to standard level.
- As a supplement when using Javen to optimize water treatment efficiency.
Instructions for Using NaOH
- Check the pH of the water before use.
- Dilute NaOH or add directly to pool water depending on the pH level that needs to be adjusted:
- Dilute NaOH 20% or 32% before adding to water to ensure safety and effectiveness.
- Use in a well-ventilated area, avoid contact with skin and eyes.
Comparison of Javen and NaOH in Swimming Pool Treatment
| Criteria | Javen | NaOH |
|---|---|---|
| Main use | Disinfect and clean water | Increase pH |
| Complementary effects | Slight increase in pH due to side effects | No antiseptic effect |
| Using | Dilute first, add to water | Dilute or add directly depending on the condition. |
| Safety | Protection is required when using, avoid direct contact. | Similar to Javen |
Read more:
Chemical Packaging and Storage Specifications
Javen
- Format: Liquid. See more: How to mix javen
- Pack: Plastic cans or containers from 30kg, 250kg, 500kg.
- Preservation: Store in a cool, dry place, away from direct light.
NaOH
- Format: Liquid, content 20%, 32%, 50%.
- Pack: Cans, plastic tanks from 30kg to 30.000kg.
- Preservation: Close tightly after use, keep out of reach of children.
Chemical Safety
- Read the directions carefully before use.
- Wear full protective gear, including gloves, mask and goggles.
- Avoid direct contact of the chemical with skin or eyes. If this occurs, rinse immediately with clean water and seek medical attention if necessary.
- Do not leave chemicals near water sources or in direct sunlight.
Conclusion: Should I Use NaOH Or Javen?
- Javen: Good choice for disinfecting and cleaning swimming pool water.
- NaOH: Used to balance pH when water is too acidic.
- Combine both: Achieve optimal efficiency in water treatment, ensuring clean, balanced and safe water for swimmers.

Contact To Buy High Quality Javen And NaOH
Loc Thien Investment and Development Company Limited specializes in providing high quality swimming pool water treatment chemicals. Our team of experts is ready to advise and support you to choose the right product and use it effectively.
- 📞 Hotline: (+84)979 891929
- (I.e. Email: locthien@locthien.vn
- 🌐 Website: hoachatcoban.net
Loc Thien – Comprehensive Chemical Solutions For Your Swimming Pool!

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