Posted 2/22/2017 07:18 (#5855592 - in reply to #5854970) Subject: RE: Tile Spacing
I would spend the $30k and go with 4" on 30s. That's less than $10/ ac for 320 ac. Not sure what your cost per acre is but here 4" on 50' would run approx $1,000 / acre depending on mains & submains