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???
10/07/00 02:50
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#5521 - RE: water level controller
About the sensor, I've read they should be AC powered to avoid electrodes being consumed due to electrolisis.

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List of 23 messages in thread
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water level controller            01/01/70 00:00      
RE: water level controller            01/01/70 00:00      
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RE: water level controller            01/01/70 00:00      
Joe Chan homework            01/01/70 00:00      

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