Defoamer

Spa Boss Defoamer eliminates and helps to preventing foaming in the hot tub For normal spa use add just a few drops as necessary. Excessive foaming (heavy foaming the day after) means that the water is "old" & needs to be changed. A small squirt when foaming appears is all that is needed. Defoamer should be used in moderation and can be used while you are in the hot tub.