Add this in your script after (example:)
if item.itemid == 1945 then
addEvent(CleanArea, 0)
end
Add this to the bottom of your script.
function CleanArea(startPos, endPos)
local startPos={x=32707, y=32345, z=7, stackpos=253}
local endPos={x=32725, y=32357, z=7, stackpos=253}...