As early as 15 centuries before Christ, the Old Testament (Deuteronomy 23:12-13) offered this practical advice: “Designate a place outside the camp where you can go to relieve yourself. As part of your encampment, have something to dig with, and when you relieve yourself, dig a hole and cover your excrement.” Around 4500 B.C., the first collection system for human excrement was constructed by the Romans, who were among the first to build sewers underneath street level to collect both rain water and sewage. Nevertheless, conditions remained quite primitive overall, with a communal sponge on a stick being used in lieu of toilet paper. The first modern flushable toilet was described in 1596 by Sir John Harington, an English courtier and the godson of Queen Elizabeth I. Harington’s device called for a 2-foot-deep oval bowl waterproofed with pitch, resin and wax and fed by water from an upstairs cistern. Flushing Harington’s pot required 7.5 gallons of water—a veritable torrent in the era before indoor plumbing. Harington noted that when water was scarce, up to 20 people could use his commode between flushes .  In later times, the outhouse was sometimes called a “privy” —; an abbreviated form of the word “privacy.” It was over 240 years ago in 1776 that General Israel Putnam drew up his plans in Brooklyn Connecticut for what was then referred to as his "Privy Outhouse". In 1960 the first patent for a polyethylene portable restroom was issued by George Harding, the co-founder of the PolyJohn Corporation. In the 1970s, fiberglass toilets along with a whole host of other toilet-related improvements were developed, bringing the porta potty further into the public sphere. The exterior design of George Harding's invention is a vast improvement from that of the Generals. It's now been over 70 since George Harding put his polyethylene portable on the market. The question is, has anyone considered improving on the real issue at hand? The spread of disease in the 21st century. COVID -19 has come and gone. It's ironic that we were to wear mask, social distance ourselves and wipe a door knob prior to placing our hand on it but there was no enforcements made to the portable toilet industry except to provide a bottle of hand sanitiser with each unit that was delivered. Germs are not bias. Whether it be wood, plastic or fiberglass, once you enter a porta potty, your bottom ends up in the same place as the person that was there before you, over an open, smelly hole with poop mixed with chemicals. In the past 200 years the world has made many achievements. Probably the most famous being the design of the Apollo 11 spacecraft. It launched from Cape Kennedy on July 16, 1969, carrying Commander Neil Armstrong, the first person to walk on the moon. Imagine the community of engineers it took to pull this off. Amazing right? Now to put this into perspective. Would one conclude that we have the talent to design and build a better portable sanitary mousetrap? I say yes! Absolutely.  To date there are about 3.6 million portable restrooms in the world. They are categorized as being the most unsanitary object on the planet earth, yet your loved ones or someone you know may have to resort to using one every day of their life. It may have taken over 25 years of hard work combined with a lot of trial and error but on October 2007 we completed the engineering on a new gravity fed flushing design combined with an non-mechanical push valve  design and built the first working prototype. It is way overdue not to combine the modern day gravity fed, P-Trap flushing design to a "Portable Outhouse".  We submitted it to the Patent and Trademark office in Washington DC and after 4 years of waiting, just before Christmas, we were awarded with a patent. It's the only Sanitary, Self-Contained, Portable, Non-Mechanical, Waste Disposal System on the planet. I think that General Putnam and John Harrington would have been in favor of this long awaited new design, We are now in the process of building a much nicer version than what we started with. We are hoping to get it on the market by 2026. We call it, Pushnflush Thanks Brett Roberts