Far too often people in the industry overlook the importance of chemicals in the treating of waste in their marine sanitation devices.  It seems to be very common for people to lose sight of what needs to be done to keep the system working properly and one of the easiest things to overlook is the chemicals used to do so.   Biological systems require chemicals to make “the magic happen.”   The magic described here is the treatment of waste within a type 2 wastewater system or MSD as it’s commonly referred to.  Bacteria is the source of waste treatment in these types of units.