Farm drainage The Principles, Processes, and Effects of Draining Land with Stones, Wood, Plows, and Open Ditches, and Especially with Tiles

CHAPTER VIII.

Chapter 870 wordsPublic domain

ARRANGEMENT OF DRAINS.

Necessity of System.--What Fall is Necessary.--American Examples.--Outlets.--Wells and Relief-Pipes.--Peep-holes.--How to secure Outlets.--Gate to Exclude Back-Water.--Gratings and Screens to keep out Frogs, Snakes, Moles, &c.--Mains, Submains, and Minors, how placed.--Capacity of Pipes.--Mains of Two Tiles.--Junction of Drains.--Effect of Curves and Angles on Currents.--Branch Pipes.--Draining into Wells or Swallow Holes.--Letter from Mr. Denton.