FAUM BUILDING AM) EQUIPMENT. 



239 



Since the concrete roof is to Tie self- 

 supporting, it will be necessary to re- 

 inforce it witli a few lengths of 3-8-inch 

 round steel rod. There will be needed 

 4 pieces of 3-8-inch rods, 9 feet 6 inches 

 long, and 8 pieces 5 feet long. The 

 roof is now ready to be placed. Place 

 the manhole frames in proper position 

 on top of the form, and dejMjsit the_ 

 concrete to a depth of 1 inch and on 

 the concrete lay the long and short 

 'bars. When the bars are placed, de- 

 posit the balance of the concrete so 

 as to bring the roof to a total thick- 

 ness of 4 inches. As it will be cover- 

 ed with earth it is not necessary to 

 give this top surface a smooth finish, 

 merely level the surface by striking off 

 with a straight piece of board. The 

 tank should now be allowed to rest 

 undisturbed for at least 2 weeks. At 

 the expiration of this time, saw away 

 wooden top of the forms inside of the 

 manhole frames. Then enter the tank 

 and remove the wooden forms, passing 

 the lumber out of the manhole opening. 

 While in the tank make certain that 

 the pipes are all unobstructed and not 

 even partially clogged with dirt or 

 lumber. The inlet pipe is then con- 

 nected to the pipe from the house 

 and the outlet pipe joined to three 

 lines of 8-inch concrete drain tile. The 

 drain tile will be laid about 12 inches 

 below the surface of the ground and 

 the joints left open, that Is to say, no 

 mortar must be used in the joints. 

 This permits the discharged fluids to 

 be absorbed by the surrounding soil. 

 The drain tile lines should be laid in 

 the form of the letter "Y" and sufl!i- 

 ciently extended to cover a large area 

 of ground. Average conditions require 

 that each arm be about 100 feet long. 

 After this is done, cover the tank with 

 earth to the level of the manhole cov- 

 ers. It is now ready for use. 



It is sometimes the custom to plant 

 a few shrubs around the manhole open- 

 ings, thus effectually hiding all evid- 

 ence of the tank. 



Materials Necessary. 



A tank of the size specified will re- 

 quire aiboTit 4 cubic yards of crushed 

 rock, 2 cubic yards of sand and 7 bar- 

 rels of Portland cement. There will 

 also be needed 78 feet of 3-8-inch round 

 steel rods, which can be obtained from 

 the local blacksmith or hardware dear- 

 er. The tank can be 11)ullt without 

 skilled labor. It requires but few tools 



and construction methods are so eim- 

 ple that one man can easily build it. 



Capacity of Silos. 



The accompanying table gives the 

 capacities of silos required to supply 

 silage to herds of different sizes, fed 

 either for 180 or 240 days; the corre« 

 sponding correct diameter is also la- 

 eluded. Though diameters of 22 feet 

 are given, 20 feet should be the maxi- 

 mum, since ad^ greater diameter 

 means an excess of labor in removing 

 the silage. 

 No. of 



Dairy Feed for Feed for Diam. 

 Cows 180 day 240 days of Silo 

 8 29 tons 40 tons 8 ft. 



10 36 ton? 48 tons 10 ft. 



15 54 tons 72 tons 10 ft 



20 72 tons 96 tons 12 ft 



25 90 tons 120 tons 14 It. 



30 108 tons 144 tons 16 ft 

 35 126 ton^ 168 tons 16 ft 

 40 144 tons 192 tons 18 ft 

 45 162 tons 516 tons ■ 18 It 

 50 180 tons 240 tons 20 ft 

 60 216 tons 288 tons 22 ft 

 70 252 tons 336 tons 22 ft 

 SO 288 tons 384 tons 22 ft. 

 90 324 tons 432 tons 22 ft 

 100 360 tons 480 tons 22 ft 



COST DATA FOR FARM BUILD- 

 INGS AND OPERATIONS. 



What will It cost to equip and run 

 my farm? 



Perhaps no other question depends 

 for its answei more upon local and 

 temporary condition than this, yet 

 average figures upon which to base es- 

 timates may bo if reliable, prove in- 

 valuable. As such the following re- 

 sults of careful, extended investiga- 



lO 15 20 



years from now the Bis- 

 • sell Silo will be griving 

 good service. It Is built 

 of selected timber, treated 

 with wood preservatives 

 that prevent decay. It 

 has strong, rigid walls, 

 air-tight doors, and hoops 

 of heavy steel. Therefore 

 it lasts simply because it 

 can't very well do any- 

 thing else. Our Folder ex- 

 plains more fully. Write 

 Dept. K. 



T. E. BIssell Company, 

 Ltd., Elora, Ont. 



