For those of you with experience with chelated iron.....I have never applied any chelated Iron before. I did my first app today. Directions say use 6-9 oz per 1000 sf or may use up to 2 more ounces for warm season grasses. So, I had in mind to apply about 10 ounces per 1,000 sq ft, and the lawn area was about 3000 sq ft. So, that should be 30-32 ounces of iron applied. The problem is, I had no idea how many sq ft a gallon of spray would cover. I realize it depends on many factors, but I don't do much spraying and I had a new hand held sprayer. So, it turns out I applied more than I should have. The mix did not go near as far as I anticipated. So, I ended up with nearly 50 ounces of iron on this 3000 sq ft lawn. I did realize my mistake and asked the customer to water the lawn this afternoon hoping it would help before the iron had a chance to fully soak in. She watered about 9 hours after I applied the iron. Is this going to be a dark grey lawn? Do you think the watering helped reduce the effects? Should this cause any damage or long-term problems other than turning a little darker than desired? Thanks in advance.