APPENDIX 565 
TABLE SHOWING EQUIVALENTS OF PRESSURE AND HEAD OF WATER 
HEAD IN Fret aNd EQUIVALENT PRESSRUE IN POUNDS 
5 to 60 Freer. 70 to 180 Freer, 200 ro 1000 Fst. 
L mand 
Feet Head. Pounds Press. Feet Head. | Pounds Press. Feet Head. Pounds Pregs. 
5 2.17 70 30.3 200 86.6 
10 4 33 80 34.6 250 108.2 
15 6.50 90 39.0 300 129.9 
20 8.66 100 43 3 350 151.5 
25 10.83 110 47.6 400 173.2 
30 12.99 120 52.0 500 216.5 
35 15.16 130 56.3 600 259.8 
40 17.32 140 60.6 700 303.1 
45 19.49 150 65.0 700 346 .4 
50 21.65 160 69.2 900 389.7 
60 26 .09 180 73.0 1000 433.0 
PRESSURE IN Pounps AND EQUIVALENT Hmap 1n FEErr 
5 ro 60 Powunps. 70 ro 170 Pounps. 180 to 500 Pounps. 
Pounds Press. Feet Head. Pounds Press.| Feet Head. Pounds Press. | Feet Head. 
5 11.5 70 161.6 180 415.6 
10 23.0 80 184.7 190 438 .9 
15 34.6 90 207.8 200 461.7 
20 46 .2 100 230.9 225 519.5 
25 57.7 110 253 .9 250 577.2 
30 69.3 120 277 .0 275 643.0 
35 80.8 130 300.1 300 692.7 
40 92.3 140 323.2 325 750.4 
45 103.9 150 346.3 350 808.1 
50 115.4 160 369.4 400 922.6 
