Met with customer and spoke with them regarding the issue they were experiencing. Customer’s kitchen sink has been backing up and a supervisor was out earlier to inspect and recommended a Jetter to clear the line. We arrived and presented the customer with an estimate to Hydrojet the sink along with a bottle of Endure. Customer agreed and after getting signature approval we began work. Ran hydro jetter and chain machine both through the line and were unable to get past a turn/bend in the line. Upon further inspection we found that there is a u-bend in the piping that will not allow our machines or Jetter to get past it. We also attempted to plunge the sink but were unsuccessful. We informed the customer of the u-bend and that replacement of that section of pipe will likely be necessary. A sewer supervisor will return Monday to give estimates for the repair. Customer is satisfied and only paid for the bottle of Endure for today’s visit since we were unable to clear the line we did not c