We noticed patio pavers near the foundation line started caving in, so of course I assumed a damaged drain tile system. I excavated and found the tiles seem sound, however were installed to far apart (almost and inch!) so the gravel got in, along with everything else! I am hoping that by just frequent cleaning (and repairing the exposed section) we can save the existing tile. BUT we don't have any clean-outs, so I will expose the sump pit as an access point. Got drawings from the city of the sump location, but they are 40 year old hand drawn sketches with no dimensions. I know the sump is off a certain corner of the house, but don't know how far. To help save my back, can anyone suggest the approximate location of a sump pit? 40 year old house, clay drain tiles, pit located on low side of property. Thank you!