Live in zone 5, KBG lawn, and have irrigation.

My game plan:

I am going to have lawn service company finish out the season, but will not be having them return next year.

Starting in the early spring of 2017 with pre-emergent, followed by a monthly feeding of Milorganite starting on Memorial Day.

My question:

Please recommend watering correction technique.

I have read in the blog; infrequent and deep watering is the proper way to water.

How do you get to the 1" at a time system?

What are the signs the lawn needs the 1" of water?

I did the tuna can test for 1" calculation and have tried bi-weekly watering but the lawn seems to suffer in the full sun areas, but thrives in the areas of shade.

Soil test revealed a low levels of OM and sandy soil. (thanks morph with analysis help).

Thanks