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The aim of looking for a way to deal with sewage problems isn't new. For hundreds of years people have dug trenches and found methods to get rid of trash. In the middle ages, sewers were on view street, and caused many diseases. Soon, it became obvious that instead, sewers must be underground, and that is where the septic tank was invented. To this day, many houses and buildings still use a septic tank. Any time you aren't attached to the municipal system, either since you reside in the center of the forest or in a remote community, then septic tanks are often present.
A septic tank is usually always made the same way. Because of past problems with leaks and contamination, there are a lot of rules and laws that were designed to regulate the. Typically, a septic tank is made of metal, and encased inside a cement container. Then, it's put underground. There, it remains and collects the sewage of the house, building or even a whole community, whether it's big enough. It's connected by pipes towards the buildings, and collects the nasty material until a specialized truck comes to have it out. The truck simply sucks the content out, bringing it to a municipal treatment centre. The fabric is then treated after which dumped back into a river, lake or even the ocean.
Within the septic tank itself, sediment typically will lay at the end, as the liquid portion stays at the top. This part can be disposed in one other way too. Many people, especially farmers or people who live far from civilization, possess a pipe which brings it out right into a nearby field. It may then be dumped out in the open, and evaporates naturally. There might be environmental concerns however, and this isn't practiced a whole lot because of it. Also, the smell then escapes and anyone going nearby will have a nasty surprise.
Septic tanks can have problems as well. Leaks are common in old systems, due to inadequate shielding, or because the tank is too old and really should be replaced. The cement container is there to contain any leak, but if it's missing, then these leaks can contaminate underground ponds, leading to diseases along with other problems. Also, a sceptic tank can smell when not isolated properly, or not deep enough underground. Because it contains a lot sewage, it is a big problem that may occur often.
Overall, whenever you can it is best to link to a municipal system that will bring the sewage to be washed and dumped cleanly into a river or lake, instead of using a sceptic tank. But that is not always possible, either due to the location or cost. Still, modern sceptic tanks are created to prevent such problems, and become safe and sound. When properly installed, there should be no noticeable smell.
