|
southern MN | Very good.
Back in the 1950s dad ran an 8 inch to drain the 40 acres of bowls on our property, no one else wanted to throw money away on that pipe in the ground.
Couple years later they all begged to join in.
Couple years after that dad had to run a 10 inch parallel to get our bowl to drain at all....
Decade later couple neighbors and dad added on more, so much came down that 8 inch constant even the 10 inch beside it couldn’t keep up with the shallow bowl drainage.
Neighbor and I ran a 15 inch dual wall more or less parallel. Looks like 300+ acres of surface water goes into 3-4 bowls and down those tile, and we all keep adding more small pattern pieces.
Water used to shoot out of the 8 inch intake and go back down the 10 inch intake beside it. Man that 8 inch had a lot of water feeding to it, still does but things kinda work out now.
Paul | |
|
Tile main drainage coefficient?
