I tried it because I heard other people use it. that's stupid! It takes over a week to get results and then he doesn't even check the nitrates! Use aquamedicwatertesting dot com. much faster and leads to money. I did both tests at the same time. Same day shipping to both locations. got AWT results in 3 days. Triton somewhere in 9 days. I compared the results and it turned out to be EXTREMELY close. for example it was 1320 on AWT and 1330 on Triton. Sr was 8.9 and 8.91. Cal 445 and 457. Phos 0.46 and 0.386. I mean seriously, don't waste your time on this.
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