Why is my hot tub water cloudy?

Causes of cloudy hot tub water. When it comes to cloudy water, it's likely one of a few culprits — high pH, high alkalinity, and low sanitizer. Dirty filters, body care products, and old water can also be responsible for cloudy water.
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How do I clear up cloudy water in my hot tub?

How to fix and clear cloudy hot tub water
  1. Check your filter(s). This is your first point of call with any water quality problem, especially when clarity is an issue. ...
  2. Check the water balance levels. Your second point of call is the water balance. ...
  3. Shock the spa. ...
  4. Try a clarifier. ...
  5. Last resort, empty the spa.
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How long does it take for cloudy hot tub water to clear?

It takes an average of 24 hours for cloudy hot tub water to be restored to a clear state by either using a hot tub clarifier or by hyper-chlorinating the water. However, in severe cases, a drain, clean, and refill may be necessary.
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Is cloudy hot tub water safe?

After your hot tub has been used for a while or perhaps after a hot tub party, you may notice that the water looks cloudy. While some people may wonder if cloudy hot tub water is safe and if they can skip cleaning for another day, the answer is no. The water in your hot tub should always be sanitary and crystal clear.
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How do I keep my hot tub water crystal clear?

How can I prevent getting cloudy water in my hot tub?
  1. Shower before using hot tub (don't use any soap, just rinse off in the water)
  2. Don't wash swimming costumes in detergent. Just rinse them in warm water after use.
  3. Clean filters regularly.
  4. Make sure your water chemistry is correct.
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How to fix cloudy hot tub water in three easy steps!



Why is my hot tub cloudy but chemicals are good?

High Calcium Hardness, Total Alkalinity or pH

Your spa water chemical balance may be to blame. Take an accurate reading of your Calcium Hardness, Total Alkalinity and pH levels. In areas where hard water is common, calcium can easily come out of solution and cloud the spa water.
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Will chlorine clear up a cloudy hot tub?

Shock the water

A proper sanitizer level will help destroy the particles that are causing the cloudy water. After balancing your hot tub chemicals, add a non-chlorine shock to the water. You should shock your water at least once a week or with increased use.
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Will high chlorine levels cause cloudy water?

Excessive levels of pool chemicals can cause your water to become cloudy. High pH, high alkalinity, high chlorine or other sanitisers, and high calcium hardness are all common culprits.
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Does high pH cause cloudy water?

Improper pH levels can affect your chlorine and the other chemicals in your water. High levels of pH can cause calcium build-up and scaling which leads to cloudy pool water.
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What happens if you put too much shock in a hot tub?

You only need a small amount of chlorine to successfully sanitize your spa, so it's possible to overdo it if you're not careful. Too much chlorine can damage your hot tub and irritate your skin, eyes and lungs. Thankfully, reducing the chlorine levels in your hot tub is very easy to do.
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Can you shock a hot tub twice a day?

A shock treatment takes care of this problem by oxidizing the organics in the water before they can feed the bacteria. It also helps get rid of sanitizer residue that remains after the sanitizer has done its job. Generally it is recommended that you shock your hot tub once a week – more often if it's seeing heavy use.
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Will low pH cause cloudy water?

The pH of a pool should be between 7.2 and 7.8, with 7.6 being the ideal balance. Levels below 7.0 indicate acidic water. Levels above 7.8 mean that the water is too alkaline or basic. Both instances can lead to a cloudy pool.
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Should I shock my hot tub after every use?

Regular hot tub shocking is inevitable to keep your water clean and safe for use. Dead skin and other elements like hair may end up dropping in the hot tub, leaving the tub in a mess. It is essential to shock the hot tub frequently – at least once every week.
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Will baking soda clear a cloudy pool?

Baking soda can work wonders in a pool. Baking soda can: Help to clear cloudy water and restore the sparkle. Spot-treat algae.
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Can low pH cause cloudy water in hot tub?

The ideal alkalinity level for a spa is between 80-120ppm. When the total alkalinity is too high it can cause carbonates to fall out of solution resulting in cloudy water. When the alkalinity is too low it causes the pH to fluctuate. Water that is too alkali or acidic can be harmful to you and your equipment.
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What if I put too much chlorine in my hot tub?

If the chlorine levels are too high, you can either wait it out and let the chlorine break down naturally or replace some of the water in your hot tub with fresh water. You can also use a chlorine neutralizer to quickly eliminate excess chlorine.
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What color should hot tub water be?

Every hot tub owner's nightmare: you move the cover lifter to your hot tub and discover a water colour other than clear blue. Whatever the colour, ranging from any shade between the colours of the rainbow, can only mean trouble if it's not clear blue.
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Why is my hot tub cloudy after shock?

When minerals and chlorine, bromine, or shock are combined, the minerals in the water begin to oxidize, or rust. The result is discolored cloudy hot tub water after shock that often appears green or yellow.
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Does high alkalinity cause cloudy pool?

High Total Alkalinity

A high-pH environment can result in high calcium levels, making the water cloudy or causing “scale,” a hard, crusty mineral build-up. Too-high levels of alkalinity can also result in green water (Algae). It can reduce the effects of the chlorine you use to keep algae under control.
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Will low chlorine cause cloudy water?

Low chlorine level is the primary cause of cloudy water. Firstly, ensure that pH is stable between 7.4 and 7.6, and then balance your free chlorine to read 3 ppm; combined chlorine should be at 0 ppm.
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Why did my pool get cloudy overnight?

There are three main causes for cloudy pool water: poor filtration, chemical imbalances, or environmental factors like nearby construction, trees, or wildlife. Filter and pump problems can be caused by a range of issues. If the system is run for just a few hours each day, it may not be able to clean the entire pool.
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What temperature should I leave my hot tub on overnight?

Knowing that hot tub water heats up around three to six degrees per hour, keeping it as low as 10° less can still be fine. At most, it will take about 3 hours to get back to normal when you're ready for it. But if you find your hot tub heats slower, or you don't like waiting, keep it at 5 degrees less instead.
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How soon can you go in a hot tub after shocking it?

How long do I need to wait after shocking my hot tub? There is no set time to wait before using your hot tub. All brands give different recommendations, ranging from 20 minutes to 24 hours. However, before donning your swimsuit and stepping inside, we suggest using a test strip to ensure your chlorine levels are safe.
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