Quickly Eliminates Foaming ClearRay® Foam Away is an exclusive formula that breaks up existing foam in spas, hot tubs, and whirlpools. Use ClearRay® Foam Away whenever troublesome, unsightly foam develops. Directions for Use: To eliminate foaming, Shake well and dispense approximately one capful of ClearRay Foam Away onto the surgface of the water while the water is being circulated. Wait 30 minutes and repeat treatment if foam has not subsided.