Safe-Spa Bacteria Test Kit from Sensuous Solutions allows you to screen you foot spa water for bacterial contamination in just 20 minutes. This easy-to-use kit has no chemicals to add or measure and there are no samples to send. Instead it works in a similar fashion to a home pregnancy test, using an indicator strip with a visual readout. To make sure your foot spa is safe, even after cleaning and disinfection, the manufacturer recommends monthly testing.