Winter Biochar refresh for Vetiver greywater treatment

Winter has come and the char in the greywater reed bed is replaced while the Vetiver are in their dormancy period.

The grease filter and hair trap has been dumped into the char as the plants are removed.

The char is moved to an area of native plants and thrown in as a surface mulch. It slowly incorporates into the leaf litter.

Vetiver plant showing short root growth where they make contact with water level. Plants in low-nutrient water tend to have long roots.

This plant regularly has longer roots running down the edge of the bathtub.

Plants are trimmed and replaced into new biochar for another 12 months.