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Overview of Green Hot Tub Water and Ways to Clear it

Everyone knows a hot tub should be filled with crystal clear, inviting water. Unfortunately, sometimes hot tubs can turn out to be murky and green– an unpleasant sight to the eyes. The good news is, you can still clear and keep the water of your hot tub crystal clear. In this article, we will discuss the causes of green water in hot tubs, as well as how to clear it up and prevent it from coming back.

What Causes Green Hot Tub Water?

Unbalanced Chlorine

One of the main factors of green hot tub water is an unbalanced chlorine. Chlorine is used to clean and sanitize water and is the most important element in cleaning a hot tub. When there is either too much or too little chlorine in the water, it will turn green. To balance the chlorine levels in the water, it is important to have the correct sanitizer, as well as consistent shock treatments.

Heavy Metals

Heavy metals, such as zinc and copper, can also cause the hot tub water to turn green. These metals are usually deposited in the water through the intake of corrosion-prone water pipes, such as those featuring galvanized steel. To reduce the heavy metals levels in the hot tub, it is important to reduce the water pH levels and, if necessary, install a filter to reduce the amount of metals entering the water.

Surface Algae

Surface algae is another common cause of green hot tub water and, admit it or not, most of the time this is caused by the owner. A build-up of bacteria and algae can occur when good hot tub maintenance practices, such as regular draining, pH checking, and clearing out any debris, aren’t followed. If left unchecked, green surface algae can continue to spread throughout the water.

How to Clear Green Hot Tub Water

Increase Sanitizer Levels

By far, the most effective way to clear green hot tub water is to raise the sanitizer levels. Ideally, the chlorine levels should be at least 2 parts per million, and the pH should be between 7.2 and 7.6. If the sanitizer levels are too low, shock the hot tub with a chlorinating agent to get the water back in balance.

Filter The Water

In addition to the shock treatment, it is important to filter the water. This process filters out any debris, such as dirt and pollen, as well as any heavy metals, such as zinc and copper, that may be present in the water. By filtering the water, it will help clear the green coloration as well as keep it clean and clear for longer.

Shock Treat The Water

Shocking the water is necessary in order to clear the green coloration of the hot tub water. Shocking or oxidizing the water will help to break down any organic matter that is in the water, such as bacteria, dead algae, and dirt. It will also help to eliminate any ammonia and other unpleasant odors that may be present in the water.

How to Prevent Green Hot Tub Water

Maintain the Chlorine Levels

In order to prevent green hot tub water, it is important to maintain the chlorine levels. Keeping the chlorine levels at their optimum ranges, i.e. between 2-3 parts per million, will ensure that the water remains clear and sanitized.

Balance The pH Levels

Another factor to consider when it comes to preventing green hot tub water is to check the water’s pH levels. Ensure that the pH levels are consistently monitored and balanced according to the manufacturer’s instructions.

Regularly Clean and Treat The Water

Lastly, it is important to regularly clean and treat the hot tub water in order to maintain its clarity. Use a mild detergent to clean the interior of the hot tub, and use a chlorine treatment to kill any bacteria as well as to keep the water clear and free of any unseen contaminants.

People Also Ask

What causes green hot tub water?

Green hot tub water can be caused by several things, such as unbalanced chlorine levels, heavy metals, and surface algae.

How do I fix green hot tub water?

To fix green hot tub water, it is important to raise the chlorine and pH levels and to shock treat the water. Additionally, it is important to filter the water in order to help clear it out of any debris and heavy metals.

How often should I change the hot tub water?

It is recommended to change the hot tub water at least once every three months, or every 100 hours of cumulative use.

What can I use to clean my hot tub?

Mild detergents and chlorine treatments are recommended for cleaning the interior of hot tubs and for killing bacteria.

Will baking soda clear cloudy hot tub water?

Yes, baking soda can be used to help clear cloudy hot tub water, as it acts as a water clarifier and helps to remove any mineral build-up that may be present in the water.

Final Words

Green hot tub water can be an unpleasant sight and experience, but luckily there are ways to both clear and prevent it. The most important thing to remember is to routinely maintain the chlorine levels and pH levels of your hot tub in order to keep your water calm, clear, and free of contaminants. With proper maintenance and follow-up treatments you can easily keep your green hot tub water at bay.