Hot Tub Serum Cleaning KitHot Tub Serum Cleaning Kit Hot Tub Serum Total Clean System is a all in one easy to use system. Most people are using their hot tubs outside throughout the fall and winter months. Although the winter time is the most pleasurable season to use an outdoor hot tub. There are certain precautions you should take to ensure the proper operation and performance of your tub. Start with a good fall purge with Hot Tub Serum Total Cleanse; a purge product that