We have an older house (c 1920?). The cellar drain (only) goes to a drywell, which has gotten quite slow lately. The drain is in the center for the floor. It goes through a trap, with a clean-out access on the other side. After that, it runs off more-or-less horizontally. A snake has some difficulty about 6' in, but runs free after passing that.
So, my question: in those days, would there have been a rule-of-thumb as to where they put the drywell - under the house, or out past the foundation? ISTM, it would be easier to put it under, since the cellar was already dug out.
Any thoughts appreciated. Thanks, G