Commando black tank cleaner
        
Walex
        
        

        
* Pail of 40 sachets
        
* Commando is a super concentrate enzyme formula sachet that is dropped into an empty tank and then filled with water to cover all sensors and wall areas.
        
* Let sit for a minimum of 12 hours, and 24 in extreme cases to remove any residual waste and paper from the walls and sensors leaving the tank like new.