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#12
01-14-2017, 01:22 PM
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If PO4 is 2 ppm the HI736 ULR Phosphorus checker won't read that high - it only goes to 0.6 ppm (200 ppb).
 The HI713 LR Phosphate checker may be a better option as it goes up to 2.5 ppm (this one is frickin annoying though because it only displays the result for 10 seconds before it turns off grrr).Quote:
 Last edited by Myka; 01-14-2017 at 01:27 PM. 
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