I did a lawn renovation yesterday in expectations of getting some rain today. I told the clients if it did not rain I would come by today and set up sprinklers. Well, it didn't rain. When I went by I found a note asking if I would core aerate again tomorrow since I would be sprinkling today. And what the cost would be just for that. The lawn did not core very well. Only about an inch deep. They didn't do any watering prep for me. I explained that to them and just left it at that. I can understand them wanting a better coring job. But I have never done this right after seeding. Should I tell them no???