Hot Tub Serum Total CleanseHot Tub Serum Total Cleanse The Hot Tub Serum Water Treatment Program is simple to use and solves the common problems of water care. The two step program of using Total Cleanse (Step 1) each time you drain and refill your hot tub and adding Total Maintenance (Step 2) each week to help maintain crystal clear water. Total Cleanse is a natural cleaner that cleans your hot tub surfaces including your pipes, plumbing, jets, and all other surfaces in the