Tech notes..Came out today to diagnose a clog in a home. While on site found the home to be clear with no clog. We found the toilets are back to back therefore could be causing the clog to bounce between the toilets when plunged. Resolution.. plunged both toilets to potentially clear the clog. Advised tenant that if the clog returns we will need to come back out and camera the sewer line. Notes.. no visible outside clean out Estimates.. ready to send Job complete