SpaBoss pH Stable is the straightforward and simple way to stabilize pH levels in the water to minimize the need for other chemicals to keep the water balanced. This water balancer helps to prevent wild spikes or dips in the pH levels in the water by locking in the pH. Keeping the pH level stable means your hot tub won’t need other chemicals to increase or decrease the levels very often. Too many chemicals in your hot tub can lead to foaminess and other side effects. SpaBoss pH Stable also softens spa water by getting rid of dissolved calcium deposits that can occur, and helps prevent staining from metals.