Hot Tub SERUM Total Maintenance is part of a total cleaning system that consists of two steps. Hot Tub SERUM Total Clean System cures water care issues that plague hot tubs by preventing recurring build-up of bio-matter and sludge. If you have these water care issues that never seem to go away, you need the Hot Tub SERUM Total Clean System. Give us a try we won’t disappoint. Our dealers will tell you we are the best and fastest way to clean your hot tub operating at its best. Our hot tub chemicals will keep your spa water clean, crystal clear and make the sanitizers you use work to their maximum. Hot Tub SERUM Total Clean System will also cut the time you spend on cleaning your hot tub use it on your Hot Tub Cover and Filter cartridges too.