Personally, I'm not "thrilled" about the idea of using one tank sprayer next year. Some of my accounts have nutsedge problems. Some have crabgrass problems. Some just use a lot of glyphosphate in the natural areas with some pre-emergent. If I purchase a sprayer next season, it appears my only known option is a Lesco. But what I'm wondering is are there any quality units with maybe three different tanks? You maybe have a valve which controls your herbicide choice. That way, there's no backtracking over certain routes, no mixing of different herbicides, and no wasting herbicides on accounts that need one thing but not another. Am I dreaming or talking about something that already exists but I'm unaware?