4/9/2014 1:04 PM
Still water:
30 day intervals:
10ppb
5ppb
5ppb
Not having any history of your property, I would recommend you call Sepro, they will come out and do the FAST test for free and tell you what the rates need to be, but we have been using 10,5 and 5 for years. That said, I try to avoid Sonar in my irrigation lake this time of year.
I will say that if you have a mainline break, you may kill a bunch of grass.
This time of year, 7 days is not doable, you may want to use a contact until the rain starts again.
Regards,
Steve