Hydromat has a number of different means to apply chemicals such as Truck and Carwash Detergent or Degreaser. Detergent Injectors mix up a soapy solution, which is applied through the lance, left to work, and then washed off with High Pressure Water. For a longer contact time of the detergent, use a Foamer. It aerates the chemical into a thick foam which stays in contact with the surface to be cleaned for longer and is therefore more effective. Please click on the pictures to contact us for more information or call us on 1300 788 608. Thank you.