Our primary system consists of 73 ponds and a large plant filter (approximately 94m2). The main ponds drain into the plant filter, water travels for 80metres through plants, before being pumped back to the ponds with a 55,000lph (720W) submersible pump. The pump is connected to a pair of 100mm pipes which deliver water back to the ponds.
The pond system was designed using Sketchup.
The system is continously monitored with a custom Arduino based controller and RF network. The following graph shows the temperature of the water measured in the filter for the last 24 hours.