Then it flows

It should be regrettable that in most cottages, the sewage system is made according to the old model, in the form of a cesspool. Here dirty water goes directly into the ground, then it reaches the first aquifer and accumulates there. Then it flows to another aquifer, and ultimately can fall into the water. Think for yourself whether it is possible to drink or even use such water for domestic purposes? And this is not to mention the fact that such sewer systems cause irreparable harm to the environment. Plus, the cesspool will have to be cleaned periodic, and this procedure is not pleasant.