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.