so my student is just starting out. he called today moaning, "bob, help me out, i'm not sure what to do or say...." he thatched, aerated, and seeded 2 lawns about 3 weeks ago. under my guidance, they were done properly. he instructed them to water daily. he's just starting out, and only has like 12 clients. these two which he seeded, are signed up for full service. well, they both called over the last couple days, a bit upset, at not seeing any grass growing. i told him to ask if they been watering per his instructions. both were honest enough to say no. both asked that more seed be applied. how do u instruct this new guy?