The best hot tub water care system is one that best helps you keep your water clear, clean, and safe. This usually means good filtration, balanced water (pH and alkalinity), water free from contaminants, and safe levels of chemicals without irritants. In our experience, the best systems to achieve these goals integrate three essential components: the filtration system, a low-chem primary sanitizing system, and an effective secondary oxidization system. Together, these systems, in 3 stages, ensure that your hot tub water remains clear, free from contaminants, and safe for you and your loved ones, while providing the easiest maintenance process possible.

Hot tub filtration systems remove debris, contaminants, and impurities from the water. Water circulates from the spa’s main body and passes through filter membranes that trap particles such as dirt and organic matter. This process is facilitated by a pump that ensures continuous water circulation that cleans all of the spa’s water several times in a day, resulting in clear and safe water for users.

The Simplicity Filtration System is a patent-pending, user-friendly, and affordable spa filtration system designed by Bullfrog Spas. Simplicity Filtration is available in our premium spa lines and is a key part of the Simplicity Total Water Care approach to maintaining clean, clear, and safe spa water. The Simplicity system features a unique flat filter that does not require a plastic frame. Simplicity Filters are easy to remove and clean. This system also features a high-quality corrosion-resistant filtration pump in most models, which ensures consistent water flow, quiet operation, and reliable performance over time.

Sanitizing systems kill bacteria and other pathogens in the water. The two most common sanitizers are chlorine and bromine. Chlorine is fast-acting, while bromine is considered more stable in high temperatures. Both ensure water safety by disinfecting the hot tub. Spa water care systems often known simply as “salt systems” actually generate either chlorine or bromine from that salt in order to sanitize the water.

FROG @ease is a two-part, low-touch sanitizing system, with cartridge formats created specifically for use in Bullfrog Spas^® brand hot tubs. FROG @ease uses a mineral cartridge to inhibit bacteria growth and a low-dose SmartChlor^® cartridge for additional sanitation. This system creates fresh mineral water, which feels great on the skin, while greatly reducing the amount of chlorine necessary to keep the water clean over a extended periods. SmartChlor cartridges often last around a month between changes, sometimes more, depending on spa size and usage.

Water care approaches known as “saltwater” or “salt” systems use an electrical process to generate either chlorine or bromine, often in generous amounts, from a salt added to spa water. The production of either chemical, whether chlorine or bromine, is great for sanitization of spa water, however, these systems can come with some drawbacks. Although often billed as automated systems, salt systems are not maintenance-free. These systems often require regular cartridge replacements, probe or cell cleaning, along with frequent checks for effectiveness, water balance, and to keep over-production or under-production of chlorine or bromine in check. A high volume of salt in spa water can cause hard water stains and can corrode or otherwise damage hot tub components over time. Due to our commitment to our customers to provide durable spas that will operate reliably for years, Bullfrog Spas does not currently offer salt-based chlorine or salt-based bromine systems.

Oxidation systems introduce active oxidizing molecules to spa water to eliminate both organic and inorganic contaminants, clarifying the water in the process. These systems complement primary sanitizers, often reducing the amount needed, providing a gentler and eco-friendlier approach to maintaining water clarity. Common oxidation methods include Ozone systems, UV systems, and AOP systems.

AOP (Advanced Oxidation Process) systems use atomic oxygen (O₁) to create hydroxyl radicals, which break down contaminants through powerful oxidation. Bullfrog Spas’ Premium AOP System by Clear Comfort^® offers powerful oxidation effect that allows for minimal chemical use, while creating fresh, clean, clear water, and a low-maintenance approach. Customers enjoy a safe, clean, clear water and a worry-free spa ownership experience.

UV systems use UV-C lamps to emit ultraviolet rays into passing water. These rays disrupt the DNA of microorganisms, rendering them harmless. This technology enhances water quality and supports primary sanitizers. UV bulbs must be maintained and changed regularly to ensure effectiveness. UV can operate in stand alone systems, or, UV light is often a component of the more powerful “AOP” approach to water care.

Ozone systems introduce ozone (O₃) gas to spa water, which helps eliminate contaminants through oxidation. Bullfrog Spas offers two ozone systems: the EOS Enhanced O₃ system, which features high output and filtration for managing excess ozone, or the more simple Wellspring O₃ System. Both of these systems operate automatically to support chemical sanitizers and promote healthier water.

Bullfrog Spas offers a variety of water care systems including the best-in-class 3-part Simplicity Total Water Care system, which is a combination of filtration, sanitizer, and oxidation. Stand alone systems used in Simplicity Total Water Care, or on their own include Premium AOP by Clear Comfort, EOS Enhanced O₃, Wellspring O₃ system, and FROG @ease for Bullfrog Spas (in both Simplicity and Classic formats). These systems offer options for safe, eco-friendly water care, with low-touch ease and reduced chemical use.