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Filter diameter meters	Filter bed depth meters	Replace the 2m with you filter diam in meters, and 1.2m with the filter bed depth in meters.		AFM filter media
				25kg bags
		top layer	Grade 1 =
For filters under 1 metre in diameter you may just use AFM grade 2 and grade 1, add the G3 quantity to the G2		middle or bottom layer	Grade 2 =
		bottom layer	Grade 3 =
	max 40 x 25kg bags to a pallet		Total
Weight of sand Kg	If the weight of sand is shown on the label, then replace the 1000kg number with the weight of sand to calculate the 25 kg bags of AFM required for your filter
		top layer	Grade 1 =
		middle or bottom layer	Grade 2 =
		bottom layer	Grade 3 =