View Full Version : PO4 Test Kit Question?
08/15/2008, 12:37 PM
The instructions say to shake the tube for 5 minutes, the card says 2 minutes, which is correct?
08/15/2008, 12:41 PM
2 minutes with a maximum time of 5 minutes. The maximum time is mainly for freshwater as freshwater will start to breakdown the chemicals and make the results unreliable after 5 minutes. Hope that helps.
08/15/2008, 01:10 PM
Thanks, that helps a lot. My arm was a noodle after shaking it for 5 minutes. Next time two minutes it is.
vBulletin® v3.8.4, Copyright ©2000-2013, Jelsoft Enterprises Ltd.