When spraying I use dye on dormant turf to tell where I've sprayed but when the grass greens up I try to spray in the morning to see the lines in the dew but there are mornings where there is not much dew or it's not always possible to spray early. I have a foam marker but it has quit working recently. When it did work it was iffy at best, didn't really drop often enough and tricky getting the soap mix right. Mine came on my ZSpray which is an older model. I was wondering if they have improved it recently? I don't spray on an everyday basis like many of you do so maybe if I did I would be better at keeping track. I know this has been gone over countless times but what are some tricks you use to keep up with where you have sprayed?