When Enzymes Komplete™ is mixed with water and agitated, it will form a lot of foam. More agitation = more foam!  The formed foam is a unique combination of enzymes and oxygen that give great additional cleaning power that is very beneficial for gardens. The Beneficial Foam Action allows the wide spectrum of enzymes to penetrate deeper and stronger and performs incomparable cleaning.  To reduce the amount of foam created, please reduce amount of agitation or stop the system for a short period of time while Enzymes Komplete™ is being used.