My understanding is that when both tanks are open, this bottom tank should empty last and always have the most water in it. When the first tank runs dry, this one should still be full?
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I don't know what that would accomplish. I need to know when my tanks are almost empty so I don't get stuck. That would tell me when I'm halfway, I suppose, but too far from empty.Why not just put a shut off value on 1 or both tanks.
Nick
So it doesn't tell you how much is in a tank, but tells you when the volume of your full tank has flowed through? I guess that would work.Mine is inserted just before the fresh water pump with the reader in the vanity drawer. Reads total water consumed since last reset and instantaneous flow rate.