You swap a 50-gallon water heater in a basement. Old one's out, new one's sitting in the dolly. Then you see it — a water stain spreading from under where the old tank sat. You push the new one aside. The floor's soft. Particle board, not concrete. You could set the new tank on it and leave, but you know it'll sag in 6 months, maybe crack a fitting and flood the place.\n\nDo you finish the swap and warn the homeowner? Call and wait for approval? Or eat the time and fix the floor yourself?\n\nI've made all three choices. Two of them cost me money. One of them built a customer for life.\n\nWhat do you do? Drop your move below. 👇