Customer Stated: This is a commercial site. They were having back up up issues for both toilets consistently, and were told that they needed to have the toilets upgraded with more flush power. Tech Notes: Upon inspection I found that these are both a Kohler flush assist toilet located in the men/women bathroom of building. I found that for todays visit they are both functioning properly with no issues, but the store managers complaint was they were constantly backing up. I let him know we can submit for new toilets, but the best route is to have the sewage drain lines hydro jetted quarterly to help fix this issue. I made him aware that this is due to not enough water being used, and the sewage line not being cleared out due to lack of water flowing in sewage line. I called PRS, and he stated he would like quote as it would take 2 days for authorization to come through. Resolution: We will need to hydro jet the sewage/drain line for both toilets in the men/woman bathrooms to help f