Cloudy water in hot tub and the appearance of algae. What to do?

Jacuzzis are a popular choice for relaxing and relieving muscle tension. But anyone who has ever taken a dip in a hot tub can probably agree that clean, clear water is key to an enjoyable experience. Dirty, stained or cloudy water in a hot tub can cause frustration and discomfort for users. In this article, we will explore some of the common causes of cloudiness in hot tubs, including algae and other factors.

Reasons for the appearance of algae or cloudy water in hot tub

1. Poor water hygiene

One of the most common causes of cloudy water in hot tubs is poor water hygiene. When the pool water is not maintained properly, bacteria and other microorganisms start to multiply in it. The water in the massage pool loses its transparency and emits an unpleasant smell. This can cause irritation to the skin, eyes, and ultimately also problems with the maintenance of the equipment. In order to prevent this problem, it is essential to regularly check and maintain the correct levels of chemicals. Chlorine and pH tests are essential to ensure clean and clear water. You can read about the proper maintenance of the water in the massage pool here.

One of the most common causes of cloudy water in jacuzzis is the appearance of algae. Algae are microscopic plants that multiply rapidly in water. The warm water in the hot tubs is the ideal environment for the growth of algae to flourish even more. The result is green or blue and turbid water in jacuzzi.

The reasons for the appearance of algae are poor water hygiene, poorly maintained filters, lack of water circulation, poor pH balance, and light. Algae need light for photosynthesis to survive. If the pool is exposed to sunlight most of the time and is open even at night, this can cause algae to form even faster.

Regular maintenance of the pool with the help of algaecides and periodic cleaning of the pool surface is crucial to prevent the growth of algae in the jacuzzi.

What to do when algae appear?

• Step 1 – clean the pipe system
  Use a spa pipe system cleaner. use according to the manufacturer’s instructions. Airblowers should not be turned on because foam is generated. Run the pumps for about 10 minutes.
• Step 2 – Chlorine schock
  Carry out a chlorine shock – add 10x larger dose than normal shock chlorination) 
• Step 3 – drain the water
  Drain the water from the pool and rinse the pool. Fill with fresh water and follow the chemical regulation instructions when filling the pool with fresh water and properly regulate the chemicals.

 

3. Poorly maintained filters and pumps

Hot tub filters and pumps are responsible for cleaning and circulating the water. If they are not regularly cleaned and maintained, they can become clogged with solid particles, such as leaves, twigs, hair, dirt, and other debris. This can reduce the efficiency of filters and pumps, leading to impure water. Clogged filters cannot filter water efficiently enough. This leads to the appearance of algae, bacteria, and other microorganisms.

The pumps are responsible for evenly mixing chemicals such as chlorine and pH regulators in the spa water. If the pumps are not working properly, these chemicals can be unevenly distributed, leading to water imbalances and hygiene problems.

Poor maintenance of filters and pumps in the jacuzzi also leads to increased use of electricity. It can also shorten the life of other equipment. This, in turn, increases operating and repair costs.

 

4. Excessive number of people

Hot tubs usually have a limited capacity, but sometimes there are too many people in the hot tub at the same time. When a pool is overcrowded with people, the water can quickly become contaminated with oils, dirt and other impurities, leading to cloudy water. Limiting the number of people in the pool and maintaining the correct ratio between the number of users and the amount of water is key to keeping the water clean.

5. Dirty swimwear

Hot tub users typically enter the water wearing swimsuits that may be soaked in fabric softeners, oils, lotions, and other chemicals. This can affect water quality and cause turbidity or even foaming water. It is also important to shower thoroughly before entering the pool to remove dirt and oil from your skin.

6. Deficient maintenance of the disinfection system

Poor maintenance of the disinfection system in hot tubs is a serious problem that can lead to many problems and health risks. Salt chlorinators, UV disinfectants and ozone generators must be regularly maintained, otherwise the removal of microorganisms in the water is not effective. This also leads to algae growth, unpleasant water odor and poor water quality. It is crucial to regularly test the water and maintain the correct ratio of disinfectants (chlorine, bromine, etc.) and balance the pH value of the water.

What to do when cloudy water in hot tub appears?

If you notice that the water in the massage pool is not completely clear despite the procedures mentioned above, the cause is usually mechanical. Clean the filters and turn on the 24 hour filter cycle. If you use the hot tub very often or if it is more often exposed to external influences, extend the filter cycles.

If, despite the above measures, the water is cloudy, use a flocculant, available in your country – a special preparation for removing the turbidity of water in swimming pools. It works by turning the dirt into flakes in a very short time. Use according to the manufacturer’s instructions.

 

Keeping the water clean in spa pools is therefore essential to enjoy a pleasant experience. Regular maintenance, monitoring water quality and preventing the causes of turbidity are key steps to ensure clean water and a safe environment for all spa pool users. With regular maintenance and careful consideration of these tips, you can enjoy a clean and health-friendly hot tub all season long.

Read more about how to maintain water in a jacuzzi.

If you do not yet own a hot tub or are looking for a new one, you can view our offer in the JJSPA online store.