The whole story isn't really known yet Well, true. But this is what we know:
- The person originating the story, Catherine Corless, denies making any references to a septic tank and never used verbiage like "dump the bodies".
- Other locals prayed at and decorated the graves for years, and apparently did not find anything shocking about the mass graves apart from the fact that it is, well, a grave.
- The shocking aspect of the story comes specifically and singly from the idea that someone found a septic tank an appropriate burial method. Remove that, and all you have is a mass grave in a country where misery was common, properly cared for by the locals.
In short, we don't know much but that the shocker of dead children dumped in septic tanks is a fabrication.