OTHER CONDITIONS AND PROBLEMS 163 



other sizes will vary from these figures according to the 

 depth and width of the ditch, and will be about propor- 

 tional to the cross section of the ditch. 



A workman, reliable and expert in laying tile, and who 

 did most of the work " by the rod," estimated that he 

 could dig a 3-foot ditch, lay and blind the tile (3-inch and 

 4-inch), as follows : 



In clay soil, requiring some "picking" . . 6 rods a day; 



In sandy or loam soils 9 rods a day ; and 



In muck soils 12 rods a day. 



In Lenawee County, Michigan, a common practice 

 has been to charge by the foot for digging the ditch and 

 laying the tile. When the drains average 3 feet deep, 

 the price is 1^ cents a foot for laying different sizes up to 

 and including 4-inch tile, while the price is 2 cents a foot 

 for 5- and 6-inch tile. Above 6-inch tile, wages are usually 

 paid by the day. 



212. Order of steps in tiling. If the following order 

 is observed in installing a system of tile drains, numerous 

 difficulties may be obviated : 



1. Study the ground. 



2. Establish the outlet. 



3. Locate the main. 



4. Determine the number and locate the lines of the 

 laterals. 



5. Estimate the amount and kind of tile required and 

 place order. 



6. Place the grade stakes with finders, if that has not 

 already been done. 



7. Haul and distribute tile. 



8. Do the leveling, at least for the main. The leveling 



