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- Wrote meeting minutes
- Built and connected the bubble collector container
- Reconfigure the Sand Filter Diagram; see Figure
- Performed the sugar test
- Attached the water level indicator to paper with red tape to make water level more visible
Metrics
- Reprogram process Controller: add a pressure sensor, two more values: one for air and the other for water out.
- Perform sugar test to confirm that the dissolved oxygen has been stripped out of the water.
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- The Bubble Collector Container is air tight. We tested it by placing the whole container with air into a sink full of water. No air bubble leak out of the container.
- As of now, the sugar test failed for tap waterSugar test: tiny bubbles formed in tap water (supersaturated) when sugar was added.
Issues
- Unclear tubing for water level indicator; see figure. As result, water level is unclear to see. We need either colored water or glass tube. Other suggestion is to obtain a floating ball to indicate the water level in the tubing.Need to collect lots of data and test grain sizes