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Old 06-05-2018, 11:15 PM   #1
Join Date: Apr 2016
Posts: 73
366FL Holding Tanks and Control Panel

Friend has a 366FL with control panel that allows you to check Black tank 1 and Black Tank 2. Black 1 shows a level, black tank 2 shows empty. Same goes for grey tank and galley tank. Grey tank shows full, galley tank empty.

Is there two of each tank? Can someone explain how this unit is plumbed so I can tell my friend how to read his guages?Click image for larger version

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Old 06-07-2018, 06:45 AM   #2
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Those luxury 5th wheels had some models with second bathrooms and galley the 366FL is not one of them. The panel is common to all models the reason for reading empty on the 2nd black and galley tank is more then likely those tanks are not installed.
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Old 06-07-2018, 07:17 AM   #3
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Probably only one black tank, as this model only has one toilet, but could (and probalby does) have 2 grey tanks. Not uncommon for the kitchen to be on one tank and the bath sink/shower be on the other. Level indicators may not be working, also not uncommon.
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