Aquire a 4" plastic drain pipe, place comfrey leaves in it,secure mesh at one end, mount verticaly in a sunny position. Place a container under bottom. place water filled Pop bottle with string attatched in top as waight.
Within a week the Comfrey concentrate will flow.
This method can also be used as a filter for Rhubab concentrate against White Fly, it stops your watering can from blocking up so frequently.
All the best to all,
Fred Perry.
