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![]() I have been using one of those plastic rectangle testors for years and relying on it.
The other day I broke down and bought a proper refractometer. To my amazment my old testor was reading very low LOTS When I tested it with my old my reading was 1.0025 New meter 1.0030 ![]() I suggest to anyone useing one of the cheep testors go out and get a good one.
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My 120 build - http://canreef.com/vbulletin/showthread.php?t=58912 |