Performed urinal rebuild as proposed. When I took apart the urinal I removed the diaphragms from the flush valve. I called tech support for the part number for the diaphragm. The diaphragm needed to do the rebuild was not in stock at this time. I called management and informed them that there were parts that needed to be ordered. The part was ordered and the rebuild was rescheduled for when the parts arrive. I put the flush valve back together and turned the water off to make sure there would be no leaks. 10/22/21; Performed flush valve rebuild. I replaced the existing urinal parts with new factory ordered ones. After the urinal was rebuilt I performed a flush test on the urinal. The flush valve performed as designed and there where no leaks when last checked. When flushing the urinal, the water was very slow to drain. The urinal did not overflow onto the floor but did drain very slowly. This maybe a sign of calcium build up which may be obstructing the drain. I brought up this issu