How to Lower Chlorine in a Hot Tub : The Ultimate Guide

Chlorine, bromine, sanitizers, and other chemicals are necessary to keep the hot tub water clean and hygienic and give you the best immersing and massage experience. However, adding the right amount of sanitizers and chlorine in the hot tub is a tricky task. To get the clean and hygienic water, you have to add the accurate amount of chlorine in the hot tub.

If you add too much chlorine or other chemicals, they will disturb the hot tub’s water chemistry and cause you health and skin issues. If you think your hot tub is a high chlorine level, you should immediately bring it down to the normal. If you don’t know how to Lower chlorine in a hot tub? There are multiple ways to bring the level down, and you can do whatever is suitable for you.

How to Lower Chlorine in a Hot Tub?

If you want to know how to lower chlorine in a hot tub. First, you should know what is chlorine? Why it is necessary to add in the spa and how to test the chlorine level in the spa, then you will have a better understanding of the process to lower the chlorine level.

What is Chlorine?

The hot tub water’s hygiene and cleanliness are vital to give you the best immersing and massage experience. To keep the hot tub water clean and hygienic for the users, chlorine is one of the most important substance. Chlorine is a sanitizing agent, used to keep the water safe and clean for a specific time. You have to add a specific amount of chlorine and other sanitizers before and after you use the hot tub. However, it would be best to add the correct amount of chlorine.

Why Should You Add Chlorine in the Hot Tub?

You may find it tough to add chlorine and other sanitizers before and after going into the hot tub. The chlorine addition in the hot tub is vital to give you a hygienic and clean environment for hydrotherapy. The small area and the water temperature of the hot tub are the perfect breeding grounds for the bacteria and other germs and if you don’t add chlorine and other sanitizers in the hot tub, these germs and bacteria will affect your health. Therefore, you should always add the right amount of chlorine.

What is the Right Amount of Chlorine for the Hot Tub?

The amount of chlorine for your hot tub depends on your hot tub’s size and water capacity. However, you have to add 2 teaspoons of chlorine in a 200 gallon hot tub.

Why Chlorine Level Gets High in the Hot Tub?

Hot tubers often face the issue of high chlorine levels in the hot tub. There could be multiple reasons behind the high chlorine. You may add a lot of chlorine in the hot tub after using it with your friends and family, and it resulted in the high level of chlorine.

Many hot tubers use cyanuric acid in the hot tub to keep the water clean and hygienic. However, if you add too much chlorine with a splash of cyanuric acid, it results in a high chlorine level.

Additionally, if you have installed the hot tub indoors or in shades, it rarely gets a chance to burn down the chlorine level of the sun exposure and it may result in the high chlorine level in your hot tub. Therefore, if you have installed your hot tub indoors or in shades, it would be best to avoid adding a large amount of chlorine.

How To Check the Chlorine Level in the Hot Tub?

To test if your hot tub has an accurate amount of chlorine or not, you have to test the chlorine level in your hot tub. To test the chlorine levels in the hot tub, follow the following process.

• Open the hot tub.
• Wash your hands, dry them thoroughly before handling the strips.
• Remove a test strip from the container.
• Avoid touching pads on the test strips.
• Dip the strip into the hot tub water.
• Submerged the strip accurately to get a good reading depth.
• Keep the testing strips in the water for a few moments.
• Remove the test strip from the water.
• After removing the strip from the water, keep it in a horizontal direction and make sure it does not face the sun.
• Compare and contrast the strip color with the colors given on the chart.
• Comparing and contrasting the testing strips with the given chart will tell you whether your hot tub is high, low, or moderate level of chlorine.

The Side Effects of the High Chlorine Level?

If your hot tub has a high chlorine level, you will face the following side effects and disadvantages.

• The high chlorine level may cause irritation to your eyes.
• The high chlorine level may cause irritation to your skin.
• Over dried skin.
• You may face over dried hair.
• Face some breathing issues.
• Your swimsuit may get damage.
• The high chlorine level may damage your spa cover.

How to Lower Chlorine in a Hot Tub?

Many hot tubers face the issue of high chlorine levels in the hot tub, and the higher level could inflict multiple skin and health issues to the users. Moreover, it can harm the life and function of the hot tub. If your spa has a high chlorine level, you should take measures to lower it down as early as possible. There are various ways to lower the chlorine level. You may select one from the following.

Wait For It to Lower Down Naturally

The process is appropriate for the outdoor hot tub. This is one of the easiest ways to lower down the chlorine level in the hot tub, and you don’t have to put much effort and money to lower the chlorine level in this natural way. Remove the cover of your hot tub and let it stay uncovered for some time.  The sunrays will help the chlorine break away naturally and helps in lowering the chlorine level.

If the chlorine level in your bathtub is really high, avoid immersing in the bathtub until the level goes back to the normal level.

The Advantages of the Natural Process

• It is free, and you can easily do it.
• It does not require any chemicals and sanitizers.
• You can easily do it without any help of professionals.

Disadvantages of the Natural Process

• It takes a long time to lower the chlorine level.
• It may not be suitable for the indoor hot tubs.
• You have to wait for hours to get in the hot tub.

Replace Some Hot Tub Water with Fresh Water

If your hot tub water has the higher level of the chlorine, you can quickly lower it down by replacing the hot tub chlorinated water with fresh water. The process of replacing the water is quite simple. Fill a bucket from the hot tub chlorinated water, drain it in the drainage. Fill a bucket with the fresh water and add it in the hot tub. Test the chlorine level, if it is still higher than the normal, repeat the process again. Keep on repeating the process, until the chlorine level in the spa reaches to the normal level.

After adding the fresh water, run the hot tub to circulate the water evenly in the hot tub. It will evenly distribute the chlorine and normalizes the chlorine level.

Advantages of the Replacing Process

• It is free.
• You can easily do it without the help of any professional.
• It does not require any chemicals and sanitizers.

Disadvantages of the Replacing Process

• It takes a lot of efforts to make the process.
• The process may take a lot of effort to complete the process.
• You have to wait for hours before the chlorine level comes to the regular level.

Use a Chlorine Neutralizer to Lower the Chlorine Level

You can get the chlorine neutralizer to normalize the chlorine level. The chlorine neutralizer known as sodium phosphate could be used to normalize the chlorine level. Add the chemical, according to the manufacturer’s guide. After adding the neutralizer, run the water jets for a few minutes to circulate it evenly.

The Advantages of the Chlorine Neutralizer

• It is easily available in the market.
• It reduces and normalizes the chlorine level fast.

Disadvantages of the Chlorine Neutralizer

• It costs you additional budget to normalize the chlorine level.
• You have to add it carefully.

Add Hydrogen Peroxide

Hydrogen peroxide could be used to normalize the chlorine level in the hot tub. You can get it from the market as chemical oxidizer. To get the best results and normalize the chlorine level, it would be best to get the 35% hydrogen peroxide designed to standardize the chlorine level.

Advantages of the Hydrogen Peroxide

• You can quickly get it from the market.
• It is an inexpensive way to normalize the chlorine level.

Disadvantages of the Hydrogen Peroxide

• If you add hydrogen peroxide, it lowers the pH level of your hot tub.
• It will not be effective if the pH level would be lower than 7.0

Add Vitamin C in the Hot Tub

If you want to normalize the chlorine level of your spa, you can add vitamin c in the  water. You can easily get it and add in the spa to normalize the chlorine level.

The Pros of Adding Vitamin C

• It is efficient for the highest chlorine levels.
• You don’t have to use chemicals to normalize the chlorine level.
• It is one of the most effective ways to lower the chlorine levels.

Cons of Adding Vitamin C

• You have to add a large quantity to reduce the chlorine level.
• The cost could be higher than the other ways.

Drain Some Hot Tub Water

You can easily reduce the chlorine level of the spa by draining the water and adding fresh water in the tub. Turn off the hot tub, remove the cap from the draining valve of the hot tub and drain some water, then refill it with fresh water. Test the water quality and the chlorine level of the spa and if the chlorine level is still higher than normal, drain some more water and replace it with fresh water.

Once the chlorine level is normal, turn on the hot tub’s jets and circulate the water to normalize the chlorine level evenly in the bathtub.

Advantages of Draining Hot Tub Water

• It is one of the easiest ways to reduce the chlorine level.
• You can do it by yourself without any help.
• You don’t have to use chemicals to lower the chlorine level.

Disadvantages of the Draining Process

• It may take a lot of time.
• It may take a lot of your efforts to bring the chlorine level down.
• You have to rebalance other chemicals and sanitizers in the hot tub afterwards.

Stop Adding More Chlorine

This is one of the simplest ways to lower the chlorine levels. Once you notice that your hot tub has a high chlorine level, stop adding more chlorine in the water and let the spastay uncovered for a while.

Pros of the Process

• It is one of the simplest ways to lower chlorine level.
• The problem will be automatically solved after a while.

Cons of the Process

• It takes hours to normalize the chlorine level on its own.
• It is only effective, if the chlorine level is slightly higher in the spa.

Heat Up the Hot Tub

The spa heat has an indirect effect on the chlorine level.  If you increase the spatemperature, it will breed more bacteria and more chlorine will be utilized to kill them and it ultimately lowers the chlorine level.

Increase the water temperature higher than the moderate temperature. Keep the tub at the set temperature for a while and then test the chlorine levels.

Pros of the Heat Up Method

• It is one of the easiest ways to lower the chlorine levels.
• You can do it by yourself.
• It does not involve adding the external chemicals and sanitizers in the spa water.

Cons of the Heat Up Process

• The abrupt increase and decrease in the hot tub temperature may increase the electricity bill.
• It may take long time to adjust the chlorine level.

Try Alternative Hot Tub Chemicals and Sanitizers

If you have a sensitive skin and allergic to chlorine. You can use different chemicals to keep the hot tub water clean and hygienic. Following are some of the chemicals that can be used as an alternative to the chlorine.

Nature2 CF

Nature2 CF is a mineral sanitizer that could be used as an alternative of chlorine to keep the water clean and hygienic and to kill the bacteria and other germs in the bathtub. It has minerals such as silver and copper that react with the pool water to release positive ions. These positive ions kill the negative substances such as bacteria and organic matter.

Natural Chemistry Pool Perfect

Natural chemistry pool perfect is another alternative to chlorine that could be used to keep the hot tub water hygienic and clean.

Some FAQs About How to Lower Chlorine in a Hot Tub

What Happens If Chlorine is too High in a Hot Tub?

Chlorine is essential to keep the water clean and hygienic for the sers. However, you should keep the chlorine level moderate and accurate in the spa.

If the chlorine level increase in the spa, it can damage the your hot tub and the cover. Moreover, it can damage your skin, health, and eyes. Additionally, it could cause damage to your lungs.

How Fast Does Chlorine Dissipate in Hot Tub?

If it is installed directly under the sun in your garden or backyard, the chlorine dissipates in 15 to 20 minutes. However, if the spa is installed in the shade or indoors, it can take longer than 15 minutes to dissipate.

How Long  Does It Take for Chlorine Levels to Drop After Shocking the Hot Tub?

If you shock the spa tub, it takes 24 to 48 hours to lower the chlorine level.

What Neutralizes the Chlorine Levels in the Hot Tub?

If you want to lower the chlorine levels in the spa, you can use a neutralizer. You can use vitamin C, ascorbic acid, and sodium ascorbate.

Should I Put Chlorine in My Hot Tub Every Day?

Even the hot tubs have the efficient water circulation and water treatment systems, but chlorine is vital to keep thewater clean and hygienic.  China Royal spa suggests to add the chlorine in the spa before and after using it. However, make sure you should add an accurate amount of chlorine so that it does not exceed the moderate level.

How Many Teaspoons of Chlorine Do You Put in a Hot Tub?

The amount of chlorine to sanitize and clean the hot tub depends upon the size and water capacity. If a spa holds 600-800 gallons of water, you have to add 3/4 teaspoons of chlorine.  A 900-1200 gallon bathtub needs 1 to 1/2 teaspoon, and a 1600-1800 gallons bathtub needs 3 teaspoons of chlorine to give the users clean and hygienic water.

How Long After Adding Chlorine Can I Use the Hot Tub?

If you have added chlorine to keep it clean and hygienic, China Royal Spa suggests to use the spa 24 hours after adding the chlorine.

Can Too Much of Chlorine Make Hot tub Water Cloudy?

Yes, if you add too much chlorine, it makes the water cloudy.

Do Peroxide Lower Chlorine Levels?

Yes, peroxide lowers chlorine levels, but you should use it with great care because if you use it excessively, it can imbalance the water chemistry.

Can You Immerse in the Hot Tub, If the Chlorine Levels are Too High?

If you add too much chlorine, it will become a pit of harmful gases and chemicals. Therefore, if your spa has a high chlorine level, China Royal Spa suggests not to immerse in the spa before lowering the chlorine level.

Does Boiling Water Get Rid of Chlorine?

Yes, boiling water can get rid of higher chlorine levels in the bathtub.

Can You Immerse in the Hot Tub With Chlorine Floater?

Yes, you can immerse in the spa with a chlorine floater. However, make sure that chlorine levels are not higher than the moderate capacity.

What Happens If the Chlorine Level is too low in the Hot Tub?

Chlorine is essential to keep the water clean and hygienic, and if the chlorine level in the spa is too low, it becomes a dangerous space for the users. Bacteria, organic matter, and other microorganisms could affect the user’s health and skin.

What are the Side Effects of Too Much Chlorine?

The high chlorine level will have the following side effects on the user’s health.

• Nausea and vomiting
• Coughing
• Skin allergy
• Burning in the eyes, throat, and nose
• Shortness of breath
• Dizziness
• Watery eyes
• Skin rashes