Elevated header tank:
Dripper and outflow pipe to heath trays:
Heath stack 1:
- Red are elevated CO2 lines, blue is ambient.
- Nozzles on the line control flow into the tray.
- Boards are covering the top trays.
Elbow pipes on heath trays:
- Elbow pipes on trays control the fill of each tray. Sam drew lines with sharpie where the fill height is best so that they can be easily aligned when bumped.
- Water samples are taken through the elbow pipes.
Accessing the water lines:
- It is easy to pull on the water line system when pulling out individual trays. There is access to the back of the trays so that the water line can be removed so the tray can be pulled out.
- However, this does make the trays stick out into the walkway. We zip-tied poles onto the edge of the stack in front of the elbow pipes to prevent people from directly hitting anything.
- Also, the elevated water treatment has some bubbles that are generated in the line.
Line from algal header tank:
- Sam added a thinner line (connected below the green zip tie) to improve flow.
- The line runs to an algal header tank in the breezeway that is filled in the mornings and feeds everything in this room. The tank runs out in the evening.
Juvenile geoduck in H1T1:
For comparison, here are 5 week old industry geoduck:
Interestingly, juveniles were crawling up the side in one industry tank: