Britex De-foamer prevents foam and suds build-up in the recovery tank of any hot water extraction cleaner. Foam build up is often caused by detergent residue left from previously used shampoo or spray foam. De-foamer ensures optimal vacuum pressure for water extraction, leaving fabric drier after cleaning. Excessive suds will affect vacuum strength and may stop the Britex machine from working effectively. Recommended for use with the Britex carpet and upholstery cleaning machine.