Posted 9/11/2010 17:07 (#1355573 - in reply to #1355463) Subject: Re: More tileing questions ~
Kingston,Mi
The standard is 3/8 inch per day for row crops and 1/2 inch for specialty crops. The calculators usually have the ability to do both. The flattest portion of the main will control the entire system, so if a portion is .1 grade(1ft in 1000) , use that to find the acres that a size will handle.