Changes

|Proportions

|Proportions

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|

*70 - 80 % coarse [[sand]]  

*3 parts[[sand]]  

*20 - 30 % [[Bioretention: Filter media#Organic components|organic soil components]] and [[Bioretention: Filter media#Additives|additives]]

*1 part [[Bioretention: Filter media#Organic components|organic soil components]] and [[Bioretention: Filter media#Additives|additives]]

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*70 - 80 % coarse [[sand]]  

*3 parts [[sand]]  

*10 - 15 % [[topsoil]]  

*2 parts [[topsoil]]  

*10 - 15 % [[Bioretention: Filter media#Organic components|organic soil components]] and [[Bioretention: Filter media#Additives|additives]]

*1 part sand [[Bioretention: Filter media#Organic components|organic soil components]] and [[Bioretention: Filter media#Additives|additives]]

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