Dec 2, 2015 #1 L Luisg951 New Member View Badges Joined Nov 29, 2014 Messages 5 Reaction score 0 Location Perris ca Rating - 0% 0 0 0 My pH probe Keeps reading 4.00 i tested the water on both my tanks and on a new batch of salt mix I tried to calibrate & I keep getting calibration failure.
My pH probe Keeps reading 4.00 i tested the water on both my tanks and on a new batch of salt mix I tried to calibrate & I keep getting calibration failure.
Dec 2, 2015 #2 ss95003 Active Member View Badges Joined Nov 5, 2011 Messages 347 Reaction score 86 Location United States Rating - 0% 0 0 0 That means you need a new probe. They don't last forever. If it sat dry out of water that will ruin it too.
That means you need a new probe. They don't last forever. If it sat dry out of water that will ruin it too.
Dec 2, 2015 #3 J Jimmyb819 Active Member View Badges Joined Sep 15, 2014 Messages 135 Reaction score 47 Rating - 0% 0 0 0 +1 need a new probe. BRS has a good deal for thier lab grade probe. I replaced mine with it and so far it's great.
+1 need a new probe. BRS has a good deal for thier lab grade probe. I replaced mine with it and so far it's great.
Dec 2, 2015 #4 trido Valuable Member View Badges Reef Tank 365 Reef Of The Month Joined Apr 22, 2010 Messages 1,636 Reaction score 1,035 Location Lynnwood, Washington Rating - 0% 0 0 0 Yep, dead probe.
