Stated.. master bathroom tub is not getting hot water upstairs bathrooms are backing up and upstairs washer box is backing up. Tech notes.. found no issues while running water upstairs. Nothing backed up. Flush both upstairs bathroom toilets 10 times each and ran both the tub and shower. Ran washer and it backed up. Master bathroom tub scald guard set to low. Adjusted and temp of water getting hot now. Resolution.. ran pistol snake down washer drain to clear and pulled back several foreign objects. There are more objects in the drain line we could not get with pistol snake that I believe have made it into the main for the upstairs. Did not want to push these objects downstairs so we need to return with a camera to asses and perform spot repair on the sewer pipe to prevent them from making it to the main downstairs which is under the slab. Notes.. Status..not completed.