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Hydrochloric acid 35%, hydrochloric acid, acid by winwin pool

Last updated: 13 Mar 2026
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What is Hydrochloric Acid 35%? How to Use It Safely for Swimming Pool Maintenance

Hydrochloric Acid 35%, also known as Muriatic Acid, is a chemical commonly used in cleaning applications, industrial processes, and swimming pool maintenance. It is a highly concentrated acid that effectively helps lower the pH level of water and remove scale, mineral deposits, and limestone stains.

Hydrochloric Acid 35% is an inorganic acid with the chemical formula HCl. It dissolves easily in water and has strong corrosive properties, therefore it must be handled with caution.

Properties of Hydrochloric Acid 35%

  • Highly concentrated acid
  • Quickly lowers water pH levels
  • Removes limescale, mineral deposits, and rust stains
  • Highly soluble in water
  • Strong odor and corrosive properties

Uses of Hydrochloric Acid in Swimming Pools

In swimming pool systems, Hydrochloric Acid is mainly used to maintain proper water balance, especially to reduce pH levels and Total Alkalinity so that chlorine can function efficiently.

  1. Lowering the pH level in pool water
  2. Removing scale and mineral deposits on pool walls
  3. Cleaning pipe systems
  4. Cleaning certain types of pool filters

Safety Warning: Always dilute the acid with water before use and wear protective equipment such as gloves, safety goggles, and a respirator to avoid acid fumes.

How to Use Hydrochloric Acid 35% Safely

  • Always add acid to water, never add water to acid
  • Use in a well-ventilated area
  • Keep away from children and pets
  • Avoid direct contact with skin
  • Store in tightly sealed acid-resistant containers

Benefits of Using Hydrochloric Acid for Pool Maintenance

  • Quickly balances pool water chemistry
  • Helps chlorine work more efficiently
  • Reduces cloudy water problems
  • Helps prevent scale buildup

Summary

Hydrochloric Acid 35% (HCl) is a very useful chemical for swimming pool maintenance, especially for adjusting water pH levels and removing mineral scale. However, it must be used properly and with appropriate safety precautions.

Recommendation: Regularly check your pool water quality to ensure that your filtration system and chemicals work efficiently.

 

Hydrochloric Acid 35% (HCl 35%)

Used for cleaning pool floors, concrete surfaces, water treatment, and adjusting the pH level of swimming pool water.

Recommended dosage: 3 liters per 100 cubic meters of water when the pH level is higher than the standard range of 7.2 7.6.


Contact: 02-989-1111, 02-130-6134-35
Line: @winwinpool

 

 

 

 


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