Table of Contents
Detailed Test PlansThe following test plans were established to test various aspects of the system:
Test ResultsAfter rigorous testing, the following results were determined. From this information, design changes were made, and a beta prototype was constructed with the suggested changes.
Biological Water TestingThe system was tested using the MS2 coliphage, and was proven to provide a UV dosage well above the required limit for drinking water.
The NSF/ANSI regulation is that UV disinfection provide a dosage of 400 J/m^2. The teest on this system averaged to 1300 J/m^2.
With a 1/4" hole drilled in the orifice plate, the flow rate is safely set at 3.7 L/min.
The device is easy to use intuitively; 100% of people tested said that it was easy or very easy to operate.
The ease of manufacturing and assembly was tested by several subjects.
Different filter materials were tested for effectiveness in reduing water turbidity. The resolution is that four layers of canvas cloth is sufficient to bring the turbidity to an acceptable value.
Electrical TestingAlternative Power
The solar panel and battery were tested for use with the system. A 300 mA, 4.5 watt panel is sufficient to charge an 8 Amp-Hour battery off of which the device is run.
AC, grid-powered system In addition, a few different ballasts were purchased and tested. The following document contains information about a magnetic versus electronic ballast, including test data, advantages, and wiring diagrams for each.