Source: Jacuzzi.com

When it comes to choosing your hot tub, water care is an important consideration for any buyer. Fortunately, this element of hot tub ownership can be as easy as you want it to be—as little as only a few minutes a week. While usage, weather, and water quality vary by region and can affect your water care routine, the right levels of filtration and water management systems can ensure you get clean, clear water with the level of effort you choose.



Filtration is the foundation upon which water care rests. Ultimately, water care is made easier when you have a multi-stage filtration process on your side. Jacuzzi® Hot Tub models have up to five stages of filtration, ensuring your water is quickly and easily cleared of all debris and ready for the water treatment process.

  • First, the ProClarity™ filtration system uses two stages to catch all the tiny particles and debris that other filters miss.
  • Second, the ProClear® filter works to clarify your spa water, even when the jets aren’t running.
  • Then, the surface-skimming weir and ProCatch™ bag work together, cleaning the surface and trapping large debris for easy removal.
  • Finally, the pleated cartridge filter removes large and small particles, giving you the cleanest water possible.

Once your multi-stage filtration system has removed all particles and debris, you’re ready for the water treatment process.


In general, you have four main options for hot tub water care: UV-C, UV-C plus ozone, ozone, and salt water systems. Each has its own benefits when used in conjunction with your spa’s filters and applicable water care products.


This modern science uses nature-inspired ultraviolet light to neutralize pathogens in the water. Emitted by a light bulb built into your hot tub filtration system, it’s also fast and very easy to maintain.

  • UV-C light can simplify your need for spa chemicals while keeping your water crystal clear.
  • Natural UV-C light, emitted by the CLEARRAY® bulb, neutralizes 99.9% of water-borne pathogens.
  • It’s used in combination with a small amount of chlorine or bromine sanitizer after each use and during scheduled filtration cycles.
  • It requires a CLEARRAY® bulb replacement once a year.

CLEARRAY® UV-C technology is odor-free, easy to maintain, and durable.


Adding an automatic oxidizer to your UV-C hot tub water maintenance system offers a hands-free way to disintegrate the microorganisms that the UV-C light has neutralized in your water. The CLEARRAY® PRO3TECT Automatic Oxidizer, combined with CLEARRAY® UV-C, further automates the water care process and is available as a factory-installed upgrade option or in an aftermarket kit.

  • Specifically designed to work with our UV-C technology, CLEARRAY® PRO3TECT automatically oxidizes impurities for crystal clear water with minimal time and effort.
  • We developed a low-output system that releases just the right amount of ozone, creating a powerful oxidizer without any off-gassing. This prolongs the life of your equipment longer than other ozone systems.
  • The automated design further promotes clean, clear water all the time with minimal effort.

When equipped together, UV-C and ozone are state-of-the-art technologies that make it easier than ever to maintain your hot tub.


While combining UV-C technology with just the right amount of ozone is ideal, many newer hot tub models can be equipped with an ozonator kit alone, designed to treat water and help to keep your spa cleaner.

  • The hot tub ozonator works to dissolve contaminants hiding in the water.
  • Ozone also brings dissolved solids together, making it easier for your filter cartridge to remove it from the water.
  • While ozone is a safe option for treating water, unlike CLEARRAY® PRO3TECT™, large amounts of ozone can speed up the breakdown of equipment such as your hot tub cover.


Salt water systems use chemical reactions to generate chlorine from salt. Salt cell technology has commonly been utilized in large bodies of water such as pools, but more recently has made its way into portable hot tubs.

  • These systems use regular pool salt (sodium chloride), which some users feel offers softer water.
  • Water needs to be tested weekly and shocked with a granular oxidizer at start-up and at least monthly. Heavy hot tub use requires additional shock.
  • Sanitizer alternatives, such as bromine, are not available in salt water systems.
  • Salt speeds up the process of corrosion on spa equipment and nearby electronics. Hosing off the spa and deck after use can help prevent salt buildup from splashes.
  • Salt water chlorine generators can be sensitive and require close attention to detail, from carefully controlling calcium hardness to cleaning filters that prolong the life of the cell.
  • It’s easier to over-chlorinate a spa with a salt water chlorine generator because it has a dramatically smaller volume of water than a pool.

Salt water systems are a somewhat new trend, but UV-C technology remains an easy and consistent method of water care, especially when paired with an ozonator. As a premium spa manufacturer, Jacuzzi® Hot Tubs chooses to utilize CLEARRAY® UV-C technology and offer the option to add in a CLEARRAY® PRO3TECT automatic oxidizer, for a water management option that is practically effortless. In the next section, we’ll go into more detail about just how easy traditional water care is—and show you how clean your water will be.