Example of the Total Vessel Volume Calculation Method

Suppose that you want to add 10 pounds of an additive proportionally to three vessels. Suppose further that vessel 1 has a volume of 900 gallons, vessel 2 has a volume of 1440 gallons, and vessel 3 has a volume of 2160 gallons. When you apply the total vessel volume calculation method to these vessels, the system totals the volume of the vessels, and then divides the total volume by each vessel's volume to arrive at the percentage of additive to add to each vessel. The calculations are:

Sum of the three vessels: 900 + 1440 + 2160 = 4500.

900 (the volume of vessel 1) divided by 4500 (the sum of the volume of the vessels) is equal to .2, or 20 percent. 20 percent of 10 pounds of the additive is equal to 2 pounds.

1440 divided by 4500 (the volume of vessel 2) is equal to .32, or 32 percent. 32 percent of 10 pounds of the additive is equal to 3.2 pounds.

2160 divided by 4500 (the volume of vessel 3) is equal to .48, or 48 percent. 48 percent of 10 pounds of the additive is equal to 4.8 pounds.

This table summarizes the figures for each vessel's volume, the sum of the vessel volumes and the proportionate additive amount for each vessel.

Vessel	Vessel Volume	Sum of Vessel Volumes	Quantity Added
1	900	4500	2
2	1440	4500	3.2
3	2160	4500	4.8