OK, now that I've taken a class on this subject I can pitch in here. 1. Cesspools are illegal in almost all states now since they would often fail within a few years and discharge unwanted effluent onto the ground.
I can speak for the rules in NC, that say, any water that comes into the house needs to go out through the Septic tank and to the drainfield, although watersofteners are often exempt from this.
The concern for household wastewater these days is not so much for the pathogens, but more toward Nitrogen and Phosphorous that don’t break down in the soils and eventually make it into the ground water and streams and lakes. Nitrogen especially is finding it’s way into groundwater and causing excess plant/allege growth in streams and lake and thus removes the oxygen available in the water for fish and other creatures.
Of course most clothes washing soap is loaded with Phosphorous.
I’m not sure why you’d put gravel into a dry well, since your not really trying to filter the gray water in anyway. And you’d want that space taken up by the rock to be used for storage of the gray water.
Gary
I can speak for the rules in NC, that say, any water that comes into the house needs to go out through the Septic tank and to the drainfield, although watersofteners are often exempt from this.
The concern for household wastewater these days is not so much for the pathogens, but more toward Nitrogen and Phosphorous that don’t break down in the soils and eventually make it into the ground water and streams and lakes. Nitrogen especially is finding it’s way into groundwater and causing excess plant/allege growth in streams and lake and thus removes the oxygen available in the water for fish and other creatures.
Of course most clothes washing soap is loaded with Phosphorous.
I’m not sure why you’d put gravel into a dry well, since your not really trying to filter the gray water in anyway. And you’d want that space taken up by the rock to be used for storage of the gray water.
Gary