Heck, maybe one of those bug sprayer thingys would work if you were doing a large area.

Actually, when we first started using it we were buying it from Home Depot in the aerosol cans. It worked fine but was more $/square foot. This last time I bought the big gallon jug which was much cheaper. We laid the bimini on the ground and the admiral and I did a sort of roll and tip. Our neighbors at the marina thought we were nuts but it's worked pretty well.