How to calculate your disposal costs for your bag and cartridge filter media.

1. For one filter, multiply the number of cartridges or bags it contains by the number of change outs per year. This will give you the total number of spent media per year. Write your answer bellow:

Example: A cartridge filter with 36 (each) 10-inch cartridges are changed every week:

36 cartridges x 52 weeks = 1,872 cartridges per year.

SPENT MEDIA PER YEAR: ___________

2. If you are using 10-inch cartridges or bags, divide the total number of spent media per year by 180 (this is how many of these cartridges or bags fit into one 55-gallon drum). If you are using 30-inch cartridges, divide the total number of spent cartridges per year by 60. In each case, the result is the total number of 55-gallon drums that you will fill each year.

Example: 1,872 total spent cartridges divided by 180 - 10.4 barrels per year.

BARRELS PER YEAR: ___________

10-inch cartridges or bags:

30-inch cartridges:

3. Multiply the number of barrels per year by the cost per barrel for disposal.

Example: Assuming you pay $500 per barrel for non-hazardous waste (or $1,000 per barrel for hazardous waste), the calculation is 10.4 x $500 = $5,200 (or 10.4 x $1,000 = $10,400).

DISPOSAL COSTS PER FILTER PER YEAR: $

Remember -- these calculations are based on a single filter, and they account for disposal costs only. Additional costs include the purchase price for disposable cartridges or bags (typically at least $3 apiece) as well as associated costs such as the labor required for media replacement and waste disposal, the increased emissions, and the increased safety risks.

by Ask Filter Man

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