Blue Mobile Toilet

A simpler type of chemical toilet may be used in travel trailers (caravans) and on small boats. Many chemical toilets use a blue dye in the bowl water. In the past, disinfection was generally carried out by mixing formaldehyde, bleach, or similar chemicals with the toilet water when flushed.The blue liquid you find in the bottom of a portable toilet is a really, really powerful deodorizer with disinfectant properties meant to help combat the smells that are produced in a portable restroom. Portable restroom providers add that blue liquid to keep the restrooms smelling fresh over time.They're called “urinal cakes” and are commonly seen at the bottom of urinals. Their purpose? Control bacteria and reduce smell. They're made of para-dichlorobenzene, a chemical that does deodorize but comes with baggage.