Hey Geniuses, I need a little help here. My goal is to mount a 15 gallon sprayer on my Gravely WB. I bought a Fimco trailer sprayer, removed the trailer, mounted the tank on top of the deck, mounted the boom to the front of the WB (at an appropriate height of course), and I'm in business.... sort of. Few problems though: 1) I need a foot-operated switch. Someone suggested one of the old-fashioned automotive high-low-beam switches. I could mount it on the top of my single-wheel Velke. I think I have enough clearance so that when it jack-knifes it won't get sheared off. Any thoughts about this? 2) I'm getting more drift than I'd like. Does anyone know of a spray tip that would give me a coarser spray than the stock Fimco tip? The number on the TeeJet tip is TKT3. I'd like to be near .5 gpm at 30 psi. 2a) Does anyone know if there is a way to reduce pressure out of the pump? It's the 2.1 gpm 60 psi Fimco pump. 3) I'm getting a fair amount of spray on the front end of the mower. The spray is aimed forward, but the breeze blows a mist onto the casters and front end of the deck. Will this cause corrosion problems with your typical broadleaf herbicides? I will not be spraying any fertilizers. If I can get past these hurdles, I think I'll have a damn fine sprayer unit. I'll post pictures as soon as I determine success. Thanks in advance!