The easiest way to clean foam out of your tanks, is to not have any foam to begin with. Add some Restrain to your extractor tanks and you’ll stop foam buildup before it can even start. Effective against foam from any detergent type - Restrain’s versatility and ease of use make it a must-have for professionals who value efficiency when they’re on the job. As an added benefit, Restrain is made from biodegradable components to ensure compliance with all environmental laws and restrictions