372 LIGHTING AND SANITARY EQUIPMENT 



349. Connecting Fixtures and Vents. Provide suit- 

 able Ys and Ts for all fixtures, as illustrated. Connect the 

 vent pipe from a point below the bottom fixture and extend it 

 up, and connect back into the soil pipe at a point above the 

 highest fixture. Give all horizontal soil pipes, whether for 

 drainage or ventilation, a fall of at least V to the foot. To 

 support soil pipe, provide suitable concrete or stone footing at 

 the bottom. Support all horizontal lines with suitable hang- 

 ers to prevent line from getting out of place. 



350. Connecting Cast-Iron and Lead Pipe. To make 

 a connection between a cast-iron pipe and a lead pipe, first 

 'connect the lead pipe to a brass ferrule by means of a sol- 

 dered joint; the ferrule is then caulked into the cast-iron hub 

 or bell end, as outlined above. 



