Your Chemical Free Spa & Hot Tub Treatment.0 New to the UK - Established in the USA for over 10 years. 100% Chemical Free All Natural Enzyme Based Non Toxic Hypoallergenic Water Treatment for your Spa and Hot Tub. Not only does it get rid of all your Toxic Chemicals it is a one step Maintenance. No water testing or balancing required. Imagine no more Eye Irritation, No more Dry Skin and Hair, Odour Free and as kind to you and your body as tap water.