Here’s a pic from a recent UDC volunteer day at the P.R. Harris Food Hub near the southern tip of DC.
Volunteers and staff have disconnected the grow-trough drain lines so that the pipes can be cleaned to prevent clogging, and the troughs can be removed and rinsed.
The P.R. Harris hydroponic greenhouse uses this A-frame design to hold grow-troughs vertically and make the most of our limited urban space, while ensuring that plants still receive enough light.
Next to the P.R. Harris hydroponic greenhouse is the aquaponic greenhouse. The aquaponic system is still undergoing mechanical improvements before it is functional. Stay tuned!