8 4 



WATER IN THE HOME 



stopper. One end of the 

 other glass tube is con- 

 nected by a rubber tub- 

 ing to the outlet valve of 

 the force pump. The in- 

 let valve of the pump is 

 connected by a rubber 

 tubing to a jar of water. 

 Wire the stopper securely 

 in the mouth of the bottle. 

 Pump water into the bot- 

 tle, and as it presses the 

 air, note how high it rises 

 in the glass tube. Connect 

 another four-foot length of 

 glass tubing on top of the 

 first one. When the water 

 fills one fourth of the bot- 

 tle, what is the height of 

 the water in the tube ? 



Application: Apply this 

 principle to a house sup- 

 ply. How high could the 

 water be raised if the 

 air in the bottle were compressed to half its original volume ? 



Faucets. Any water system in the house means that 

 we must have 

 pipes that carry 

 the supply from 

 where the water 

 enters the house 

 to the kitchen, 

 to the laundry 

 tubs, to 

 bathroom 



the 

 and 



toilets. A cut-off 

 valve is placed 



Two types of faucets: screw and spring. 



