The foundation around my house is excavated for replacement of weeping tile and waterproofing. The only section that was not excavted was the section through the garage and under to front porch. The tile is exposed at both end. One end entering the garage and the other end existing the porch. I am able to get hose in there arnd run water through depending on the position of the hose. I think the bottom half of the clay tile has sand in it causing blockage. I do not think there is any blockage caused by tree roots. Would you be able to clean out this pipe. I am located in the Mrtingrove/Eglinton area.