Changes

==Additives==

==Additives==

Typically these components would comprise 5- 10 % by volume of the filter media mixture.

Typically these components would make up 5- 10 % by volume of the filter media mixture.  

It is recommended that this fraction be taken from the topsoil or the organic portion otherwise; keeping the sand as minimum 65 % by volume.

{{:Additives}}

{{:Additives}}

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