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Unread 09/26/2017, 08:36 AM   #6
rvitko
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Join Date: Apr 2000
Location: Austin Texas USA
Posts: 35,785
My apologies, with the large size of the image I was only seeing half the image until I scrolled to the side. As you have them set, in synchronous mode both pumps should pulse from 30-100% at the same time, if no photocell is connected, this should work always unless one controller or the cable has a defect or the cable is loose. In inverse mode one should be at 30% when the other is at 100% and then they switch. Something is wrong with the cable or one controller to get the result you have.


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Tunze USA

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Current Tank Info: 210 gallon planted tank with Altum Angelfish
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