Having lived in pattaya,am now building in the country --in town our toilets go into the usual concrete rings and everything disappears--shower /cleaning and other water just drains into a roadside drain
Now with the new house we cannot just run our dirty/soapy water into a roadside ditch so do we drain it into the same concrete rings arrangement and if so how much bigger should they be --the subsoil appears to be shale so how fast will it disappear
as anyone will see I am a virgin when it comes to building and advice will be much appreciated