Content

• Steps
• Advice

If you are concerned about chlorine in your tap water, whether it's drinking water, aquarium water, or watering your garden, there are many quick and easy ways to help you dechlorinate. Natural methods such as boiling or evaporating the water are helpful when dealing with small amounts of water. However, for large amounts of water, you will need to use chlorinated chemicals. In any case, you can invest in a water filtration system to remove chlorine at the source and save time.

Steps

Method 1 of 3: Dehydration in aquarium or aquarium water

1. 

   Installation of nozzles for the aquarium. If you plan to dehydrate your tank, you can use a spray device (such as a nozzle connected to a water hose) to bring air into the water as it flows into the tank. Chlorine is volatile and will dissolve naturally in open water tanks, but the nozzle will speed this up significantly.
   • However, the nozzles do not remove chloramine, a non-volatile substance used by many water supply companies. You will need to use more chlorinated chemicals.

2. 

   
   
   Use more chlorinated chemicals to remove chlorine and chloramine. You can buy chlorinated substances at aquarium stores. Each type of chlorinated chemical will specify a specific amount of water to treat, so you need to read the instructions carefully. You will screw the cap on the bottle, turn it down and pour out enough chemicals to dechlorinate.
   • Chemically chlorinated water can be used immediately.
   • If the water in your aquarium has a biofilter, you will need to choose a chlorinated chemical that does not contain ammonia-reducing chemicals to avoid filter problems.

3. 

   
   
   Use an aeration pump for the aquarium. You should always dechlorinate before you put your fish in the tank, but aeration in the water also helps remove chlorine. The aquarium often has to use a pump to maintain the flow of water, so this is the best way to get comfortable.
   • Purchase the right pump for your tank type, tank size, and tank animals.
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Method 2 of 3: Chlorination in drinking water

1. 

   
   
   Use activated carbon filter to treat drinking water. Activated carbon is a special filter material that helps to remove chlorine, chloramine and organic compounds in the water. Some activated carbon filters can be installed into the indoor water supply. You can also purchase a filter that uses activated carbon.
   • The activated carbon filter will remove both chlorine and chloramine.
   • Select an activated carbon filter that meets NSF International standards, a non-profit organization that tests and certifies water purification products.

2. 

   Install a reverse osmosis water filter indoors. Reverse osmosis is the process of removing ions and suspended particles from water. The reverse osmosis system can be installed directly below the kitchen sink where the water supply flows into the house, and is therefore very convenient compared to other methods of chlorination. However, this equipment is very expensive, the cost can be up to several tens of million dong.
   • In addition, the reverse osmosis filter uses a lot of energy and wastes water.

3. 

   Replace filters as needed. The filter will eventually have to be replaced. The interval between filter changes will depend on the filter size and usage. You should check the manufacturer's manual to make sure the filter is replaced on time.

4. 

   Boil chlorinated water for 20 minutes. The boiling method generates heat and aeration (through air bubbles), and this combination is sufficient to remove chlorine after 20 minutes. However, this is not practical if you want to dechlorinate large amounts of water.
   • Boiling the water for at least 20 minutes will also help remove the chloramine that some regions add to the water instead of chlorine.
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Method 3 of 3: Dehydration in water for multiple purposes

1. 

   Let the chlorine evaporate naturally. Place the water to be dechlorinated into a bucket or basin. Place an uncovered bucket or basin in a place with little dust to prevent water contamination. The chlorine in the water will gradually dissolve due to exposure to sunlight and air.
   • The amount of time it takes to dechlorinate in this method depends on the amount of chlorine you want to remove and the amount of direct sunlight the water receives. In addition, the wider and shallow the water container, the faster the chlorination process.
   • Check from time to time with a chlorine tester to determine the amount of chlorine remaining in the water.
   • The evaporation method will not remove chloramine. Some companies provide water as an alternative to chlorine. This method is also not recommended for drinking water treatment as contamination is very easy.

2. 

   Dissolve 1 teaspoon of ascorbic acid per 4 liters of water. Powdered ascorbic acid (also known as vitamin C) has a chlorine neutralizing effect. Simply sprinkle ascorbic acid in the water and stir. This method is most effective when you are dechlorinating water used for watering plants or supplying a hydroponic system.
   • Ascorbic acid is quite cheap and can be found at aquarium shops.
   • Ascorbic acid can remove both chlorine and chloramine. It also does not significantly affect the taste of the water if you plan to use this method for drinking water treatment.

3. 

   Use ultraviolet light to dechlorinate water. Place the water you want to dechlorinate as close to the UV source as possible. The amount of ultraviolet rays needed to dechlorinate in water depends on the amount of water, the intensity of it, and the presence of organic chemicals in the water.
   • Typically, you should treat chlorinated water with an ultraviolet lamp with a wavelength of 254 nm with a radiant energy density of 600 ml per 1 cm2.
   • Ultraviolet light will remove chloramine and chlorine. This is also a suitable chlorination method for drinking water.
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Advice

• You can also buy chlorinated (filtered) water at grocery stores.
• Most chlorination methods do not completely remove chlorine. Fish and plants have different levels of chlorine tolerance, so you should find out what chlorine levels are acceptable for your purposes and use a chlorine test kit to check chlorine levels regularly if you are concerned. .