This whole mechanical vs. jet agitation thing is a bunch of crap. I think that mechanical agitation is the only way to go, but there is more than one way to skin a cat. The reality of the situation is that the customer wants to see green in a reasonable amount of time. End of story. It doesn't matter what you pull up to a job with, as long as you get the job done in a quality manner.
The biggest thing skipped in all these threads is prep work. Wanna make some good money hydroseeding, or any seeding for that matter? Prep the ground right. Learn what works and doesn't work. I read in another thread earlier that "A Harley Rake just brings the big rocks to the top and you pull those out and cover the other ones". I don't want to get on my soap box but roots don't grow through granite. Not the last time I tried, anyway. Loosen the soil up, get rid of the rocks, and do a soil test. Amend the soil right. And get your grades right. Be certain that the ground you have prepped will drain right and look right when you have a stand of turf on it. That will make customers more happy than 5 lbs. of seed instead of 3 lbs. of seed per 1K, wood mulch or paper mulch, or any thing else.
And since we aren't afraid to bad mouth equipment I'll put my 2 cents worth in. Rick, anytime you want to take the Pepsi Challenge with your Finn and my Turfmaker I'll be glad to do so. I can, and do on every job, put down 2500 lbs. per acre of Conwed 1000. I'm not saying that my machine will out work your machine but you won't be able to tell the difference. But when it comes time to do preventive maintenance on my 16 HP Kohler I know where the savings is. And since you brought up the whole HTPA thing lets throw this out as well. Why is it that threads like this aren't ever started on your guys website? I was a member when you all started up and really looked forward to threads like this. I still get posts in my e-mail that are posted on the contractors board and all of them lack the content and insight provided here at Lawnsite.
Good Earth Grounds Management Company, Inc.
"Helping out Mother Earth, one lawn at a time."