Our bore well drilled to 520fts. 5 inch (6 guage)casing 590fts. installed v4 submersible motor at 510fts. with 24 impellers.
after 20 days of usage we found motor running and water not coming out. We informed it to the dealer they tried to pull it out. we found it very difficulty to pull out. finally 350fts pulled out manually after that we used chain pulling got another 40 fts with casing. now HDPE pipe is recovered but motor is at 60 fts depth.
Technician says that fiber casing is compressed or broken. or motor stopped by wire.
suggest me how to remove the motor or repairing(removing) the casing. with best methods.