I have a dedicated tile for my geothermal that runs from my house 270 ft to my pond.It's a 4 inch plastic farm tile.It's partially plugged as the geo fills the tile up and it runs over after a couple minuites running.The local plumber has an eel,but it's only 100 foot.Rental places only have 100 ft also.We ran it up both ends of the tile,but didn't reach the clogged section.We found a guy with a pressurized water jet system,but he's 40 miles away and said it would be at least 500 bucks.I'm thinking of installing a clean out in the middle of the tile run so the ell could reach it all.Trying to keep from tearing my yard up.Any ideas?