Septic foss in flooding area

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Septic foss in flooding area

Postby Charly PCH » Sat Feb 24, 2018 12:47 pm

Hello everybody,

We are building a stilt house close to Chiang mai in a old rice field, meaning that during rainy season it is flooded about 5 cm.
We are looking for a solution to treat our black water.
Do you think it can work with a classic septic foss ?
We are afraid about the possibility that the water can go back to the tank while in rainy season.
Does someone have this kind of situation ?
All advices are welcome :)
Charly PCH
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Re: Septic foss in flooding area

Postby Sometimewoodworker » Sat Feb 24, 2018 12:56 pm

No idea what a septic foss is, do you mean a septic tank?

You will have to raise a section of your land so it doesn't flood for the tank, otherwise you will be pumping it out virtually everyday in the rainy season.
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Re: Septic foss in flooding area

Postby mikenot » Sat Feb 24, 2018 5:17 pm

I guess Charly is French, or French Canadian ....and that he is talking about a "fosse septique" yes, a septic tank.
If that is the case Charly, don't forget you will have the same problem with your grey water from the (separate) greasetrap for all your kitchen and bathroom waste so you will have to raise enough land for drainage for that too.
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Re: Septic foss in flooding area

Postby Ians » Sun Feb 25, 2018 2:06 pm

The reason most rice fields converted for housing have a metre or two of fill placed on top.
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