Many customers that gave the Coleman a one star review stated that the heater either stopped working or didn't work very well. Several customers complained that the water temperature dropped instantly once the bubbles were activated. As long as they didn't activate the bubbles, the water remained heated. Other customers were disappointed that the rapid heating system didn't mean for instant hot water. They didn't like that it took 24-72 hours for the water to heat up to 104 degrees Fahrenheit.
All top rated models come with a water filtration system to ensure that the water remains clean and fresh. This system is able to eliminate sediments and debris, making the use of the hot tub a safe experience. Also, it saves you time and money because tubs that do not come with this feature require you to change the water more often. Therefore, do not underestimate the importance of a water filtration system when you look for the best model to go with because it is mandatory for your health and well-being.
Cleaning the filter cartridges must happen weekly if you are using the tub on a daily basis. You can use hot water and dish soap to remove deposits and bleach to sanitize it properly. Rinse and wash it very well before placing it back. Some people will let it sit on a solution with bleach and water for a full clean up. Check every time whether the color of the cartridge is getting cloudy or not after the cleaning. When it it tainted beyond repair is time to replace for a new one. Manufacturers recommend the replacement every two weeks but once again, you are the final judge. Consider also the quality of the water to judge the replacement. When the filters must be replaced, the water also must be replaced.