Sprayer Maintenance/Storage Questions

We have a small boom sprayer, 3pt mounted. Does a great job, but the tank is small. With a few more fields coming online next year, I'm thinking a larger tank sprayer - especially due to the volume of liquid required when using Sevin XLR on Timothy.

With our small sprayer, we refill more than I like, but always empty the tank spraying when finished as herbicides run through it so quickly.

What about larger sprayers? Are you folks emptying them everytime and cleaning or do you let the herbicide remaining set in the sprayer tank for another Summer's day's spraying, like after first cut and fall spraying? Are you able to dial-in your herbicide such that the sprayer empties a foot from the gate as you exit the field?

I realize Round-up is a different animal and the sprayer must be thoroughly scrubbed before changing to another herbicide and it's corrosive and can damage a cast iron body pump quickly.

Thanks!
Bill

Sprayer Maintenance/Storage Questions