Page 484 - Boiler_Operators_Handbook,_Second_Edition

Appendices 469

Appendix P

Chemical Tank Mixing Table

Use the data on this table to create your own table for your forty-eight different level readings and the matching
specific size of chemical tank and solution strength to be quantity of chemical to produce a 5% solution. After
maintained. On a fresh piece of paper, write or print the laying out the table so we have all 48 inches accounted
range of levels of the tank from bottom to top then mul- for, we multiply each level by the 1.27 pounds per inch
tiply the values of those levels by the pounds of chemical to determine the number of pounds that must be added
per inch numbers from the table above. You can list the to produce a 5% solution at each level.
levels and chemical requirements in multiple columns to
produce a table like the one on the following page.

For this example the tank is 48 inches deep so we need