90 TBINIDAD AND TOBAGO BULLETIN. [XVIII. S. 



The pump may be mounted on a drum or barrel as shown at fi". 7. 



Fig. 7. — SinaH hand pump mounted on 10 gallon iron drum, showing complete outfit 

 in use. Original drawing. 



I I ,,^ j ^.„ | p,.-.,.„„^n..„<Ulii^ | ^ ^ ,afr(llllln.niail,.»n.,niig^ - 



Fig. 8. 



Fig. 8. —Bamboo spray rod with stop cock attached. 



This outfit is self- 

 contained, light and 

 is easy to use on 

 hilly as well as flat 

 lands. The pump 

 figured is the smallest 

 size made. Larger 

 pumps having outlets 

 for two lengths of 

 liose are also manu- 

 factured. W h e n 

 large pumps are used 

 it is preferable to 

 mount them on 



ng. 9. 



Fig. 0.— Friend angle nozzle. 

 Hole in centre .should not 

 exceed l-lfj of an incii in dia- 

 meter. 



barrels in the hori- 

 zontal position as 

 they a,re tlien more 

 suitable foi* hilly 

 districts. All barrel 

 pumps should be 

 p r o 's- i d e d with 

 agitators. The 

 handles of the pumps 

 are frequently broken 

 by carelessness in 

 pumping and spare 

 handles should 

 always be at hand. 



