I need some advise on hydroseeding. I always have done lawns with sod or seeded with encap mulch cover. I have never run a hydroseeder before. I have a developer that I work with that wants an entire development seeded it measured out to 690,000 square feet. I figured what to charge for the materials, and bobcat work. I am renting a 600 gallon hydroseeder (can spray all 600 gal in 8 Min. they claim) and need an idea of how many man hours it should take to complete this job. The area is very flat and i have easy road access to the entire area and the water source is only a few hundred yards away. I will rent a high capacity water pump to load the seeder with. Any advise from someone that has done this before and has an idea of how long it takes per acre or any other pointers would be greatly appreciated.