A customer wants me to spray 20K that he just had graded, then he is going to get it slit seeded. I told him he needs to wait at least 2-3 weeks before he seeds. He wants to wait 3-4 days cuz he's so anxious to get his seed in. I told him he can do what ever he wants after I get done spraying and paid, do ya think his seed will take???? The area is fully irrigated so watering won't be a problem. How long do you think he should wait?