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Monday, May 23, 2016

Final touches this week

As of now our water purification system is just about done. A few final touches is all we need and it should be working flawlessly.

Final Touches include:
     - Machining the waste water catch for the reverse osmosis filter. I have already gotten my measurements and made a CAD drawing for this part. This should get done in lab tomorrow.
     - Form a better funnel between the dirty water reservoir output valve and the PVC intake to the filter canister. This should not be a difficult process, we have used a heat gun on PVC for other applications and it makes the PVC quite malleable. We should be able to easily expand the PVC intake on the filter canister to form a better funnel.
     - Find a way to get the clean water out of the clean water reservoir. The most probable solution to this problem is to drill a hole in the side of the reservoir near the bottom and add a spigot so water can be tapped out as needed. Alternatively, we leave the reservoir as is and discuss this modification in our presentation. The only reason for doing this would be because so far this part has not been modified in any way and we do not necessarily need to drill a hole in it.
     - Cover up the areas where the UV light can be seen. Even though exposure to the UV bulb is virtually harmless, covering up the light will make sure more light is directed at the treatment of the water. Aluminum foil will be used to cover the bulb since it is highly reflective and we want the light waves to bounce around in the enclosure as much as possible.

Our final step in report presentation is finding a way to test our water quality before and after it is processed by the device. We have reached out to the chemistry department to request lab time to test the water, but they have not been returning our emails. If we do not hear back in the next day or two, our plan is to order a testing kit from McMaster-Carr.

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