After spraying miles of fence rows and burning out at least 9 teenage wanabe farm employees over the past couple years, the little electric pump sprayer with the 25 gallon tank is making strange noises as it nears its end.  If anyone has any ideas or pictures of the ultimate fence row sprayer I would love to know how to make the next one.  We have many idle poly tanks of various sizes and two 1000 gallon stainless nurse tanks.  Massive volume and capacity would be awesume!!!   There has to be a better way than what we currently have.  Any ideas are greatly appreciated.  Thanks!!!!