The pH scale has a range of 0 – 14, with 7.0 being neutral. Water with a pH below 7.0 is acidic and above 7.0 is alkaline or base. For spas, the ideal level is 7.5 which, being slightly alkaline, protects the spa finish and equipment from corrosion and provides optimum bather comfort.

A number of factors can affect the pH of your spa water, such as dilution with fresh water, introduction of air, chemicals and bathers, so it is important that it is checked on a regular basis.

Lo 'n' Slo - Lowers the pH level when it rises above the ideal range 7.4 - 7.6. Lo ‘n’ Slo is also used to lower the Total Alkalinity level if necessary, seek advice from your SpaGuard Dealer.