thcri, actually, what I said was you can dump from 5 gallon cans if you don't have a pump, but it doesn't have to be the whole 5 gallons...I don't know that we ever measured what we use...since we do have the pump and nozzle, we just sort of sprinkle it all over. Can't be as much as 5 gallons on each pile, because the tank lasted a long time!
About permits and limits on burning and such...some of you may remember the devastating forest fires around Daytona a couple or so years back, and then go back a couple of more years, and there was a forest fire that burned down 48 houses -- that was in Port St. Lucie, where I've been living for the past 31 years, and will, until our Okeechobee project is done. The Florida Div or Forestry is really tough on people who burn without permits or without calling each day. We don't need any more of those terrible fires!
We really have to jump through hoops to burn. The Ranger comes out and inspects the conditions. If he approves of your burn locations, he reminds you of the rules - 100' from any roads, 100' from any power lines, and 300' from any buildings not your own (100' from the ones you own). You must have a loader present to be able to gather up and smother any fire that gets away. The piles must be attended. You can tend more than one pile at a time, but only if they are all visible. All visible flames have to be extinguished before nightfall.
Finally, while there is no actual "season" for burning, we have to call each morning we want to burn and get permission. If there is anything in the current conditions that would make burning unsafe (too dry, too windy, etc.), permission will not be granted.
One thing our Ranger really does not like is if you relight existing burn piles - too smoky. We found that if we move the unburned material to another pile, shaking off dirt and ash, it's OK. He really likes the piles to sit around a few weeks until they are nicely dried out - while diesel will start a fire in green wood, it, too, is too smoky.
Even if your area does not have such rules, these would be good rules to follow.