i am going to apply beneficial nematodes this fall for the first time. i am wondering where i could get a sprayer that won't cost me $3,900 like my space saver from lesco. i can't use one of my backpack sprayers because they won't hold enough, the chance of missing spots would be to easy, and it would take me forever. so, what kind of gun, spray unit, equipment etc...do you guys use for this? where did you get it and how much did it cost? if all else fails i will have to resort to spraying out of my space saver that i use for (3-Way) herbicide spot treatments. if this were the case, can i use the lesco green gun that they sold me with the spray unit? what type of product should i clean my tank out before putting in the nematodes? do i have to clean it or just empty it? any other suggestions or help? thanks.