We bought this 20-yr-old house three years ago and installed a drain in the back yard to allow the ground directly in back of the house to dry out and take moisture away from the house. Water sits in puddles above the drain tile and nothing comes out of the exposed end of the tile. What did we do wrong? We used the black (plastic) tile along with the fabric that goes over the top. We don’t see how it could be plugged, but. . . Help! We are now looking into have more drain tile put in further away from the house but want to make sure we correct this problem and do the rest right before hiring anyone with an excavator. Your comments would certainly be appreciated!