This is some fascinating shit.
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| this may explain an oft asked question ... Fosa Septica https://forum.costaricaticas.com/viewtopic.php?f=1&t=22304 |
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| Author: | Livincr [ Tue Mar 11, 2008 6:01 pm ] |
| Post subject: | this may explain an oft asked question ... Fosa Septica |
Just relate the article to Costa Rica as well as Mexico We promised to explain why you should not put paper in a Mexican toilet, and we’re not going to let you down. There are actually several answers to this question and the most puzzling of these is: you can put paper in a Mexican toilet! Yes, you can. The toilet will not spit the paper back out like a wrinkled dollar from a vending machine. The toilet police won’t show up at your door. And there will be no immediate ill effect from your indiscretion. But it would be rude. In many tourist destinations in Mexico, especially hotels, where modern sewage treatment is available, you are encouraged to flush your paper, just like in Gringolandia. The hotel management may even post little signs to let their Mexican guests know that they are expected to dispose of their papel confort down the toilet. They have to do this because Mexicans are trained from birth to be very polite. But away from the tourist hangouts, and especially in private homes, you will encounter a small, covered, plastic or plastic-lined wastebasket near the toilet. If you see one, then be a polite guest and put your paper in there, not down the toilet. To understand what etiquette has to do with how you dispose of toilet paper in Mexico, we need a basic understanding of sewer systems. If you are reading this from your home or office in Gringolandia, chances are that your toilet (and anything else that drains from your house) is connected to your city’s public sewer system. Everything you flush flows through large concrete pipes to an industrial processing plant where the solids are separated from the liquids. The liquids are filtered and treated with chemicals and the result is released back into the environment in the least offensive way possible where nature finishes the process using evaporation and rain. The solids are also treated and refined, resulting either in trash or fertilizer. This immense infrastructure is quite expensive to install, operate and maintain. It also consumes a lot of energy. These are your tax dollars at work. Gringos who flush outside the city limits use a private septic tank, called a fosa septica (septic pit) or sumidero (drain) here in Mexico. In Gringolandia, a septic tank is usually made of a durable plastic and has two chambers. The first is called the sediment chamber. This is where the wastewater enters. Most of the solids collect here at the bottom where anything organic is slowly digested by bacteria. The liquids continue on, passing through PVC pipe (and perhaps some baffles to prevent large solids from entering) into the second stage, called the clarifying chamber. Here, particles are allowed to settle while the clearest liquid exits the septic tank. Unlike their northern neighbors, almost all Mexicans use a fosa septica, which is not much different than a Gringolandia septic tank. This technology is very old, so the process is the same. The only difference is the materials. Here in Mexico, many of the colonial houses and other buildings were constructed before the advent of plastics, so most fosa septica are built from plastered stone or concrete block. While plastic septic tanks have one or more manhole covers to permit inspection and cleaning, Mexican fosa septica are generally covered with a slab of concrete and sealed with plaster, like a tomb. The important difference between a traditional, Mexican fosa septica and a plastic, Gringolandia septic tank is what happens when the clarified liquid is released back into the environment. In the plastic version, the liquid enters one or more perforated PVC pipes, which are buried in long trenches about four feet deep, filled halfway with gravel and covered with topsoil. This is called a drain field, and it’s where you want to plant your strawberries. In the traditional, Mexican version, the liquid flows down into a filtro (filter), which is a concrete-lined pozo (well) filled with several inches of gravel on top, followed by several inches of charcoal in the middle, followed by a foot or two of sand at the bottom. Why use a filtro and not a drain field? One reason is because the filtro does not use plastics. Another is that this method takes up less space, which is a requirement in colonial urban zones. But the filtro is the hurdle, so to speak, on the toilet paper trail. Even if much of the paper discarded in a Mexican toilet remains in the fosa septica’s sediment chamber, tiny bits do float past the clarifying chamber and into the filtro, so that over time a paper mache sludge builds up. How much time does it take to clog a filtro? Nobody knows. It depends on how big the fosa septica and filtro are, how many people are using the toiliet and how much paper or other non-biodegradable stuff they’re flushing down there. It could take three years, or five, or ten. If you don’t flush any paper, it could take fifty or more. As you probably know, all septic tank systems eventually fill up with sludge and non-biodegradable stuff and have to be pumped out. In Gringolandia, where most septic tanks are located under a lawn in the yard, this is not such a big deal: just dig for a few minutes, screw off the lid and pump away. In Mexico, maintenance can be a bit more trouble. Many fosa septica are located under the patio, or they might be under the foundation of your house or even partially under your neighbor’s house, because many of these old colonial homes are the result of subdividing a larger mansion. Even when located in a back yard, the access is limited, which means the workers and their hoses will probably be coming through your front door. What’s more, most fosa septica are as old as the houses. Digging into them, like unearthing an ancient tomb, can be risky, leading to cracks or a complete collapse. This is where famous Mexican thriftiness meets Mexican toilet training. No matter what their socio-economic station in life, Mexicans stretch their pesos and pretty much everything else. When the convenience of flushing paper down the toilet is at the expense of flushing pesos by cracking open a fosa septica, Mexicans would rather have the pesos. In this sense, it would be as rude to flush paper down your host’s toilet in Mexico as it would be to leave the door open on their refrigerator. Most new homes and residential developments being built in Mexico today do use plastic septic tanks in their construction. When we were working on the design of our new home, we were offered the choice of a plastic septic tank or the traditional fosa septica. The plastic version, called a Septi-K, is billed as an environment-friendly version. It costs less than a fosa septica and has a cover you can remove to rinse the internal filter. The clarified liquids empty into a leach field or French drain. Every ten to 30 months, depending on use, you have to manually remove the lodo (uh… mud), which you can put in your yard as fertilizer or perhaps share with friends. And you can flush paper into it like a gringo. Hmmm… When we visit Gringolandia, we now feel uncomfortable putting paper in the toilet. Is it because sorting recyclables by hand is planet-friendly? Is it because it feels like throwing money down the toilet? Or is it just force of habit? Hard to say. In the end, we chose the traditional fosa septica for our new house. So now you know what to do when you visit our bathroom and why you are doing it. Thanks to you, we may never have to service our fosa septica. At least in this one small way, we have assimilated into Mexican culture. |
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| Author: | Crookedcr [ Tue Mar 11, 2008 7:11 pm ] |
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This is some fascinating shit.
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| Author: | LAdiablo [ Tue Mar 11, 2008 8:11 pm ] |
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this explains a lot. i at one time had a very difficult time trying to figure out who was throwing toilet paper covered in shit into the waste baskets of at my work. the manager was ordered to figure it out because it was not something meetings could even clear up. now it turns out the responsible party was trying to be polite? unbelievable. |
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| Author: | TheMadGerman [ Thu Mar 13, 2008 7:29 pm ] |
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Wow, I guess I totally misunderstood those signs. I've stayed at various hotels in costa rica, many of them have signs that say not put paper in the toilet. I assumed they meant things like sanitary napkins and large paper bits. It never occured to me they meant soiled toilet paper as well. Wow. I'm not even sure I could bring myself to throw shitty TP in the waste basket. It would stink! |
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| Author: | D2864 [ Thu Mar 13, 2008 9:17 pm ] |
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Another country, another method.... As long as there is water... no need for paper. In the Philippines they are taught to draw a small pale of water to pour between their legs with one hand while washing the crap or pee off with the other hand and then they use a towel to dry off. It works well too - the water actually travels without any effort all the way to the back end. I actually feel way more clean afterwards and no paper with crap on it anywhere to be found. By the way, in countries where they eat with their hands, they eat with just 1 hand, the "clean hand." They designate one hand for all the clean stuff and 1 for all the dirty stuff. The dirty hand rubs crap off one's butt - never the clean hand. |
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