Testing Procedure

1. Collect water from a local lake/ create contaminated water
2. Place 3 drops of this water onto a soy agar plate, and let it sit for 72 hours 
3. If colonies grow, then this water has bacteria, and needs to be treated
4. Pour one gallon of this water into the filtration machine
5. The water should be output in one minute or less
6. Collect the water and test it on an agar plate for 72 hours
7. The water should not grow any colonies for this project to be called a success

The project accomplished the criteria described in the Testing section. It limits the number of particles that flow through the system, uses the UV bulb to purify the water, and removes it of any bacterial contaminants.This leads to the conclusion that it can be utilized for the purification of water in rural environments without access to plumbing and electricity. Below, the samples for different test substances are shown, showing the difference between the bacterial growth from the control substances and the absence of growth once the sample has been purified by the difference,

Test:Pour one gallon through the device, time it, and keep battery running for 50 times that. Note when device stops if it does not last for the complete time.

Completion Criteria: The device is on for the complete 50 gallons

Results: The device took 2 minutes and 48 seconds to purify one gallon of water. It was able to stay on for a total time of 2 hour, 7 minutes, and 14 seconds. This equates to the device purifying 45.5 gallons. While the device does not meet the completion criteria for this test, it did purify 90% of what was supposed to.

What Happened: The calculations accounted for the device without a current inverter, which contributes to energy loss through heat. The 10% energy loss is most probably due to the loss of energy in heat.

Test:Pour one gallon that is 6% sand and 94% water into the funnel, check visually if any comes out through the outlet valve.

Completion Criteria: No visible particles in the final product

Results: The final water was free of particles, however it was slightly clouded. This did not affect eh purification process.

What Happened: The visible sediment was stopped by the sediment filter, however, the water was cloudy due to minuscule sediment particles that are invisible to the naked eye. The water is suitable to drink.

Test: Leave device out for 7 days, observe the device rigor each day and test purity of water after these 7 days.

Completion Criteria: There is no visible change in the device or change in its performance over the seven day period

Results: The device was left outside over a seven day period of varying weather, including sun, wind , and cloudy days. There were no issues and the device performed the same on the first and last days.

Test:Leave completely discharged device outside, leave for 12 hours of full sun, then check how much it has charged. Repeat for sunny and cloudy days.

Completion Criteria: The device will charge on both the sunny and cloudy days

Results: The device charged completely on a cloudy day. It will charge during any 12 hour span, regardless of the weather