I recently purchased a 2 test pack from the website in the title of this thread and received back ridiculous results. As my recent Triton labs tests were showing elevated levels of tin, I was interested in determining the source of the metal and wanted to find out if it could be coming from my RODI water (which I highly doubted as I test 0 TDS with 2 different meters) or possibly my fresh saltwater (Red Sea Coral Pro). I followed the instructions, or lack thereof, and mailed the samples to the address provided. While my NSW measurements were possible although not plausible (huge variances from the measurements that Red Sea now provides with their containers of salt) my RODI report (attached) was completely ridiculous and had higher levels of sodium, calcium, chlorine and magnesium than my NSW. Does anyone else have experience with this water testing service and how were your results?