My sub pump drains into a tube that direct the water away fom my house. The tube is buried and leads toward the gully abbout 30 feet away. Latley I water from my pump is going into the tube but the tube is backing up and over flowing and digging a hole where my pump discharges. I think the tube is blocked some how but don't know how to un block it. Any suggestions.
I suppose you could always hire a plumber to snake the line. If it's tree roots, he can cut through them. And, by knowing the length of cable before he encounters the problem, you'd know quite accurately where the blockage is.