The Planted Tank Forum - View Single Post - The solenoid valve chase, after Parker H3L
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Old 11-23-2012, 07:47 PM   #33
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Originally Posted by herns View Post
I open the knob and the zero reading aligns with the zero on the dial.
Maybe a debris is stuck inside the metering valve.

You just need to adjust the zero setting to the actual closed position of the valve. It should have come with the necessary allen wrench to so along with the instructions.
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