Invention of the modern toilet

Sir John Harrington also devised Britain's first flushing toilet – and septic tank and septic system, later aerobic treatment system and erroneously called an aerobic septic tank, called the Ajax (i.e. a "jakes"; jakes being an old slang word for toilet) – . It was installed at his manor in Kelston. In 1596, Harrington wrote a book called A New Discourse upon a Stale Subject: The Metamorphosis of Ajax about his invention. He published it under the pseudonym of Misacmos. The book made political allusions to the Earl of Leicester that angered the Queen. The book was a coded attack on the "stercus" or excrement that was poisoning society with torture and state-sponsored "libels" against his relatives Thomas Markham and Ralph Sheldon. After the publication of this work he was again banished from the court. The Queen's mixed feelings for him may have been the only thing that saved Harrington from being tried at Star Chamber. The work itself enjoyed considerable popularity on its publication in 1596.  The allusion to current elected officials and excrement has been a popular theme and méme used by Harrington Environmental Services, LLC as well in this very epoch, over four hundred years later.  The allusion to current elected officials, the current cultural wasteland forced upon the land by the controlled news and entertainment business centred in Hollywood and excrement has been a popular theme and méme used by Harrington Environmental Services, LLC as well in this very epoch, over four hundred years later.

The forerunner to the modern flush toilet and septic tank system, later the aerobic treatment or aerobic septic system, had a flush valve to let water out of the tank, and a wash-down design to empty the bowl. "The Ajax" was not taken up on a wide scale in England, but was adopted in France under the name Angrez. 

Sir John Harrington

Although he had studied the law, Harrington was attracted early in life to the royal court, where his free-spoken attitude and poetry gained Elizabeth's attention. The Queen encouraged his writing, but Harrington was inclined to overstep the mark in his somewhat Rabelaisian and occasionally risqué pieces; this remarkably similar his illustrious descendants over four hundred years later.
His attempt at a translation of Ariosto's Orlando Furioso caused his banishment from court for some years. Angered by the raciness of his translations the Queen told Harrington that he was to leave and not return until he had translated the entire poem. She chose this punishment rather than actually banishing him, but she considered the task so difficult that it was assumed Harrington would not bother to comply. Harrington, however, chose to follow through with the request and completed the translation in 1591. His translation received great praise, and is one of the translations still read by English speakers today.

Grease Traps

Grease traps (also known as grease interceptorsgrease recovery devices and grease converters) are plumbing devices designed to intercept most greases and solids before they enter a wastewater disposal system. Common wastewater contains small amounts of oils which enter into septic tanks and treatment facilities to form a floating scum layer. This scum layer is very slowly digested and broken down by microorganisms in the anaerobic digestion process. However, very large amounts of oil from food production in kitchens and restaurants can overwhelm the septic tank or treatment facility, causing a release of untreated sewage into the environment. Also, high viscosity fats and cooking greases such as lard solidify when cooled, and can combine with other disposed solids to form blockages in drain pipes.
Grease traps have been used since the Victorian days, although Nathaniel Whiting obtained the first patent for a modern day grease trap in the late 1800s. They are used to reduce the amount of fats, oils and greases (FOGs) that enter the main sewers. Effectively they are boxes within the drain run that flows between the sinks in a kitchen to the sewer system. They only have kitchen waste water flowing through them and are not served by any other drainage system such as toilets. They can be made from a number of different materials; e.g. stainless steel, plastics, concrete & cast iron. They range from 35 litre capacity to 45,000 litres and above capacity. They can be located above ground, below ground, inside the kitchen or outside the building.