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Septic tank rings

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Concrete rings 900mm diam are 180bt,

1100mm diam are 225bt

Height  can vary though prices above are for 500mm high.

I forget price of the lid, but reckon on the same price.

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On 8/17/2019 at 9:32 AM, tjo o tjim said:

You really should buy a proper plastic septic tank rather than use the old cesspit design typical here.

Why ?

 

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6 hours ago, Huckenfell said:

Why ?

Many reasons. Cesspits release concentrated waste causing groundwater pollution. Use of TP blocks the water from draining out so Thai's either don't use TP or put the used TP in a basket next to the toilet. Overflows are common and mean toilets don't flush and the house becomes a health hazard with human waste seeping on the ground. Cesspits need the pumping mafia to come out frequently and you will pay whatever they want to shake you down for with dual pricing schemes. They then dump the waste on the ground somewhere else creating more environmental problems. When cesspits stop draining fast enough a new one needs dug and installed doubling the costs again and again. A cesspit is a disgusting bottomless bucket of <deleted>. There is no waste treatment at all. These systems are illegal in the countries we come from because they are total nonsense.

 

A septic tank treats the waste using microorganisms. And when the treated waste is fed into a proper drain field the waste is treated yet again and finally the nitrogen is recaptured by plantings in the yard to good benefit. Done properly septic systems can be totally maintenance free and very environmentally sound. Every house should have one.

 

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Posted (edited)
3 hours ago, canopy said:

Many reasons. Cesspits release concentrated waste causing groundwater pollution. Use of TP blocks the water from draining out so Thai's either don't use TP or put the used TP in a basket next to the toilet. Overflows are common and mean toilets don't flush and the house becomes a health hazard with human waste seeping on the ground. Cesspits need the pumping mafia to come out frequently and you will pay whatever they want to shake you down for with dual pricing schemes.

I agree on the vast use of TP however moderate amounts have no detrimental effect as it breaks down, I have been using it and flushing it for years.

 

Also the concrete ring tanks in our old house have been in use for at least 15 years, they never smell, they have never filled, they have never been pumped. YMMV.

Edited by sometimewoodworker
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I believe Canopy has answered the question posted by Huckenfell in a very complete manner. The approved house plan posted below has three 1000 liter DOS grey Ultra series septic tanks. Since 2008 none of the septic tanks have caused any problems. None of the grey DOS Ultra septic tanks have ever been emptied. Never once has the honey bucket wagon visited this home with six bathrooms located in Buriram Province. Each 1000 liter septic tank receives fresh effluent from two toilets and one Toto Urinial. Rings are a great item for the OP stated purpose, but a very poor option in 2019 when building a bathroom in Isaan. A lower end model 1000 liter black septic tank made in Thailand by Safe Tank or DOS costs less than 3200 baht. Just as in water storage tanks there are many grades of septic tanks available when you build or buy a home in Thailand.

https://www.buriramhome.com/buriram-architect-house-floor-plans/

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25 minutes ago, sometimewoodworker said:

I agree on the vast use of TP however moderate amounts have no detrimental effect as it breaks down, I have been using it and flushing it for years.

 

Also the concrete ring tanks in our old house have been in use for at least 15 years, they never smell, they have never filled, they have never been pumped. YMMV.

Same with the ones at the resort where i m now living. They have just installed another tank and i notice that they are sealing the joins and bottom with some kind of tubed filler.

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On 8/25/2019 at 11:04 AM, sometimewoodworker said:

I agree on the vast use of TP however moderate amounts have no detrimental effect as it breaks down, I have been using it and flushing it for years.

 

Also the concrete ring tanks in our old house have been in use for at least 15 years, they never smell, they have never filled, they have never been pumped. YMMV.

I for one am not at all convinced that there is anything wrong with Concrete ring septic, provided they are properly installed. I have lived in several places with concrete rings and there has never been any problem. The microbe action works just as well in concrete as in plastic, only difference is that plastic tanks are pretty and cost a hell of a lot more money.

 

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12 hours ago, Huckenfell said:

I for one am not at all convinced that there is anything wrong with Concrete ring septic, provided they are properly installed. I have lived in several places with concrete rings and there has never been any problem. The microbe action works just as well in concrete as in plastic, only difference is that plastic tanks are pretty and cost a hell of a lot more money.

 

A septic tank can be made of concrete if someone is knowledgeable enough to build it out properly. That's not the point. The point is a septic system treats the waste where a cesspit is a storage bucket of waste that pollutes the groundwater and environment, does little or no waste treatment, needs pumped frequently, and can plug up and stop working in time. Anyone whose waste pours into a stack of rings has a cesspit. This is the common building approach in Thailand. That's why you see pumping trucks trolling around all the villages looking for people with backed up systems. That's not something you see in a developed country.

 

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On 9/1/2019 at 6:12 PM, Huckenfell said:

I for one am not at all convinced that there is anything wrong with Concrete ring septic, provided they are properly installed. I have lived in several places with concrete rings and there has never been any problem. The microbe action works just as well in concrete as in plastic, only difference is that plastic tanks are pretty and cost a hell of a lot more money.

 

The plastic tanks have media built in to the system for the microbes to live in and multiply, which the effluent has to pass through. 

The concrete rings don't have this media, so the microbes do not work as effectively. I'm sure you "could" have a concrete ring cesspit with a media bed for the microbes, but I'm equally sure that 99.99999% do not have one.

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On 9/2/2019 at 7:02 AM, canopy said:

A septic tank can be made of concrete if someone is knowledgeable enough to build it out properly. That's not the point. The point is a septic system treats the waste where a cesspit is a storage bucket of waste that pollutes the groundwater and environment, does little or no waste treatment, needs pumped frequently, and can plug up and stop working in time. Anyone whose waste pours into a stack of rings has a cesspit. This is the common building approach in Thailand. That's why you see pumping trucks trolling around all the villages looking for people with backed up systems. That's not something you see in a developed country.

 

Sorry i cannot agree , think you are just guessing, the microbiotic  action works just the same in concrete as in plastic i have never had a problem with concrete rings, and if built correctly there will be an allowance for overflow from 2nd tank, drainage trenches (French drains) which plastic tanks also need.

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23 hours ago, MikeN said:

The plastic tanks have media built in to the system for the microbes to live in and multiply, which the effluent has to pass through. 

The concrete rings don't have this media, so the microbes do not work as effectively. I'm sure you "could" have a concrete ring cesspit with a media bed for the microbes, but I'm equally sure that 99.99999% do not have one.

I have just GOOGLED Plastic septic tank deign & details and find no special "media bed" for microbes. In all designs , concrete included, the affluent just feeds into the first tank and settles where it is processed by the microbes, the treated water goes to the top and drains into the 2nd tank which overflows when full into the drainage trenches.   Have a look if not convinced !

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