Thread: Japanese House

Lisus are digging the septic tank. This is hard work. And it's hot down there.
When you think that they get 3 times less per day that my secretary gets in an hour, and a fourth that goes to the government...
We treated them with whisky and food, saturday, the least one can do!

The Thaiai workers prepare the sidewalk around the house, the South part must be dug in the rock, so that the rains do not invade us.

Steel reinforcement is prepared.

Thats a big septic...

Originally Posted by Nawty

Thats a big septic...

Smaller septic tank than what we use in farang land, but not by much. The percolating field is one third smaller. I've seen what they do here, without bottom, much smaller, they never fill, so no anaerobic activity, bacteria, read shit, risks going into the water, or else, if the soil is water resistant, they fill up quickly and have to be emptied often, to be thrown where?

What you mean smaller and never fill ??

If you are into the eco pond/swimming pool....why not do a Waste Water Garden for the septic and grey water ?? If you never heard of it, google it and Indonesia and you shall find it.

Originally Posted by Nawty

What you mean smaller and never fill ??

If you are into the eco pond/swimming pool....why not do a Waste Water Garden for the septic and grey water ?? If you never heard of it, google it and Indonesia and you shall find it.

I mean they are made of one metre round cement circles, with no bottom, which means that water goes out if the soil is permeable, so it never fills, there
is air rather than water, anaerobic bacteria have no chance to develop, eColi mix in with the water table. If the soil is not permeable, it fills rapidly and must be eptied.
For two people with a large septic tank, there is no need for the garden, there is not enough water coming out, since the shower and kitchen water does not go there.
This way, there is a maximum deposit of less than a cm per year.

Originally Posted by DrAndy

Originally Posted by Old Monkey

Originally Posted by Nawty

Thats a big septic...

Smaller septic tank than what we use in farang land, but not by much. The percolating field is one third smaller. I've seen what they do here, without bottom, much smaller, they never fill, so no anaerobic activity, bacteria, read shit, risks going into the water, or else, if the soil is water resistant, they fill up quickly and have to be emptied often, to be thrown where?

what type of rock is it dug in? is it permeable?

I had a large soakaway in Portugal dug in the rock like that; it gradually filled up and very little percolated out. We had to dig several trenches into the surrounding land to stop it overflowing

On the outlet of the tank, there are 2 trenches 6m, 50 cm deep, 40 cm wide dug and filled with small rocks. On top, there are perforated pipe, horizontal, at level with the top of the tank which will let the surplus grey water, already treated by the anaerobic bacteria in the tank, this time finish been treated this time by aerobic bacteria that colonized the small rocks. The water going out of this epuration field is treated! At this level, it's soil, and will be permeable.

The level pipes of the epuration field can be purchased in farang land, but not in Thailand. So one takes a 3" pipe and pre-dig a small hole, 2 rows marked with a chalk line.

Next, one sharpens a bit made out of a piece of steel used in concrete,

Then you use this bit to make bigger holes
Et voila! A perfectly usable percolating pipe.

Why not just use a big drill bit ?

That be what I did...

The epuration field, smaller than what's usually done in cold country, but 100% efficient in the tropical climate.

Because of a bit of soil on the North wall of the tank, the other 3 are impermeable, a block wall is being built and will be rendered.

The wall in the middle will keep heavier matter in the first compartment and let the water pass to the second.

Today, there was a sidewalk poured on 3 sides. Another nice job by the Thaiai team, helped at the mixer's end by the Lisus.

Lots of water is consumed!

How do you post MP4 short sequences? Is there a weight limit? If so, how do you process to compress it?

Originally Posted by Nawty

Why not just use a big drill bit ?

That be what I did...

None available, it took 2 minutes to make, and he could sharpen it at will on the steel cutter. Me too, I would have driven to the fifth village to buy a large bit, but his solution has its merits, no?

Originally Posted by Old Monkey

How do you post MP4 short sequences?

you will have to create a youtube account - then upload your video to youtube - then copy&paste the youtube link into this thread , and then the video will be displayed as an embedded youtube video

Originally Posted by Nawty

Originally Posted by Old Monkey

but his solution has its merits, no?

Sure, they are good at improvising most times.

I have a question for you, seeing as you may have thought of it, maybe not but.

How would you build a septic system for a house in the middle of paddy fields and I mean in the middle, surrounded by them and no raised land around the house site ?

Given that the house is raised on posts, I would build a closed tank, or buy one, with two compartments, (divided in two by a partition open at the bottom only). This would be mostly underground, let's say with the top at the level of the earth walls holding the water in rhe paddies. This would ensure an anaerobic digestion, and a deposit of solids at the bottom of the first compartment. I would use no paper, or I would request that paper not be thrown in the toilet, this would divide the amount of solid matter by 10! I would separate my house's outlet in two, poluted water(by feces), and grey water(shower, kitchen, front loaded washing machine, bath, even urine), to be treated separatly. The second could be distributed discretly in the rice paddies, this would favor fertility...
The first, after being digested by anaerobic bacterias would then percolate in a aerobic biological filter, by pipes level with the top of the tank surrounded by small rocks or surface multiplying granules, which would lodge aerobic bacterias that would complete the process and make sure that eColi have dissapeared. The water coming out of this epuration field would present no danger of poliution.

Originally Posted by DrAndy

Originally Posted by Old Monkey

See DrAndys Concrete Box in the City#194

free publicity, thanks

and yes, the tiles look good and will weather well

the effect of the diamond/triangle is nicer than the normal square look too

they come in three sizes

Could you tell me where you got them in Chiang Mai?
And also, what did you use to support them? The photos show very close metal bars. They must be heavy, I have to convince a local contractor to work with curves, I need to be convincing and have answers to his questions about the tiles. Around here there are not many styles of roof covering...

Originally Posted by Nawty

How would you build a septic system for a house in the middle of paddy fields and I mean in the middle, surrounded by them and no raised land around the house site ?

Monkey was right to a a point; BUT if the tank is more or less the same height as the ricefilelds you would need a dive pump to get the water out

we have that system in Mae Rim; when the tank is fairly full, there is a float switch which pumps out the processed dirty water to the canal, via a filter box

Originally Posted by Old Monkey

Originally Posted by DrAndy

Originally Posted by Old Monkey

See DrAndys Concrete Box in the City#194

free publicity, thanks

and yes, the tiles look good and will weather well

the effect of the diamond/triangle is nicer than the normal square look too

they come in three sizes

Could you tell me where you got them in Chiang Mai?
And also, what did you use to support them? The photos show very close metal bars. They must be heavy, I have to convince a local contractor to work with curves, I need to be convincing and have answers to his questions about the tiles. Around here there are not many styles of roof covering...

my builder showed them to us but they are fairly common

they just hang on the bars; they are not very heavy either, compared to some concrete ones

the bars are quite close as we used fairly small tiles; obviously with bigger tiles, the bars would be wider spaced

as for curves, I suppose you must use as small a tile as possible

Originally Posted by Old Monkey

Given that the house is raised on posts, I would build a closed tank, or buy one, with two compartments, (divided in two by a partition open at the bottom only). This would be mostly underground, let's say with the top at the level of the earth walls holding the water in rhe paddies. This would ensure an anaerobic digestion, and a deposit of solids at the bottom of the first compartment. I would use no paper, or I would request that paper not be thrown in the toilet, this would divide the amount of solid matter by 10! I would separate my house's outlet in two, poluted water(by feces), and grey water(shower, kitchen, front loaded washing machine, bath, even urine), to be treated separatly. The second could be distributed discretly in the rice paddies, this would favor fertility... The first, after being digested by anaerobic bacterias would then percolate in a aerobic biological filter, by pipes level with the top of the tank surrounded by small rocks or surface multiplying granules, which would lodge aerobic bacterias that would complete the process and make sure that eColi have dissapeared. The water coming out of this epuration field would present no danger of poliution.

Cheers...what do you mean 'partition open at bottom only'...what is the purpose of it open at the bottom ?

Could the water coming out of the field leach into a pond without any problems ?

Originally Posted by Nawty

what do you mean 'partition open at bottom only'...

I found that strange too

the partition open at the bottom would not stop the solids migrating across

three tanks would be good, the first overflowing into the second, the second having the partition open at the bottom

I have a large tank with three concentric rings set up like that and it works well

Originally Posted by Nawty

Originally Posted by Old Monkey

Given that the house is raised on posts, I would build a closed tank, or buy one, with two compartments, (divided in two by a partition open at the bottom only). This would be mostly underground, let's say with the top at the level of the earth walls holding the water in rhe paddies. This would ensure an anaerobic digestion, and a deposit of solids at the bottom of the first compartment. I would use no paper, or I would request that paper not be thrown in the toilet, this would divide the amount of solid matter by 10! I would separate my house's outlet in two, poluted water(by feces), and grey water(shower, kitchen, front loaded washing machine, bath, even urine), to be treated separatly. The second could be distributed discretly in the rice paddies, this would favor fertility... The first, after being digested by anaerobic bacterias would then percolate in a aerobic biological filter, by pipes level with the top of the tank surrounded by small rocks or surface multiplying granules, which would lodge aerobic bacterias that would complete the process and make sure that eColi have dissapeared. The water coming out of this epuration field would present no danger of poliution.

Cheers...what do you mean 'partition open at bottom only'...what is the purpose of it open at the bottom ?

Could the water coming out of the field leach into a pond without any problems ?

Given the temperature here, and the accelerated bacterial activity, even with a compact field, my answer is yes. The bottom opening is based on the principle that dirty water is heavier and will tend to deposit in the first compartment. The idea is to keep the tank full for anaerobic activity, overflowing gently for aerobic, all this possible with the proposed scenario.

Still don't get it.

You seem to have a lot of experience with shit OM ??