Hello, I Have A Window Well Drain With A 4" Corrugated Pipe That Is Clogged. Three Days Ago It Filled About Half Full With Water, And Started To Come Through The Window Into The Basement. I Used A Wet/dry Vac Until It Stopped Raining. Along With The Water I Also Sucked Out A Lot Of Mud And Sediment And A Few Rocks, But The Clog Remains. If I Pour A Gallon Of Water Down The Drain It Will Fill In The Pipe, But Is Gone In About An Hour So I Know That I'm Close. The Clog Seems To Be Where The Pipe Curves At. Any Ideas On How To Open Her Up? Thanks In Advance. Terryplus

Rent a sewer machine and snake out the drain line. Because the line is full of dirt and debris I would flush the line out as I was snaking it. Good luck, Tom