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kac01 · 02/10/2018, 08:13 AM

Can someone please explain why my two refractometers need calibrated every water change. I have two refractometers and they both get about .05 out of calibration every month. Thanks

02/10/2018, 08:13 AM	#1
kac01 Registered Member Join Date: Oct 2008 Location: Kansas City Posts: 218	Refractometer needing calibrated monthly Can someone please explain why my two refractometers need calibrated every water change. I have two refractometers and they both get about .05 out of calibration every month. Thanks