The Spa Solution® Earth Friendly program is a more natural way to enjoy a clean water spaor hot tub without soakingin harsh chemicals or draining them into our environment. It is a water cleaning program designed so that each hot tub owner can learn what is needed to maintain clean and safe spa water based on his or her personal use. Many factors affect your spa water such as filtration, spa features, quality of source water, bather frequency and introduced impurities. Our hot tub water cleaning program is a guide that will help you determine how to care for your spa with environmentally-friendly products. Our 100% safe and effective enzyme products are the foundation for this program. These productssoften and condition the spa water, stabilize pH & alkalinityand reduce or eliminate the use of many harsh chemicals. Following our program will allow you to drain your spa water without bringing harm to our ground water systems on which most living creatures depend.