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Old 06-15-2015, 10:51 PM   #1
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1/2 bath black tank combined with 3rd grey tank

I believe the 2015 375AMP second bath only has a release valve for the grey. At first I thought it was a combined black tank. After emptying the external valve, I only flushed the toilet, not the sink and it came out of the third grey valves sight. Why there is not at least another lever for the black is beyond me. Or maybe there is. Anyone have a poop drain valve and a grey drain valve for their half bath?
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Old 06-16-2015, 03:54 AM   #2
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I've got a 2014 380 AMP and have only 1 gray tank for the main bathroom and kitchen. The half bath sink drains into the second black tank. The drain valve for the back black tank is between the second and third wheel on the left side on the unit. Its not easy to find. Mine came with no handle but I found a small hole and inside was a threaded shaft it I pulled and the tank drained.
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Old 06-17-2015, 09:37 PM   #3
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You have 32 gallon grey/black combo tank for the half bath.
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Old 07-16-2015, 11:55 PM   #4
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How Doug you flush the 1/2 bath black tank.


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Old 07-17-2015, 10:09 AM   #5
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Half bath 32 gallon grey/black combo tank does not have black water flush. You will need to fill tank with water and dump.
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Old 07-17-2015, 10:32 AM   #6
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Surprised.... so we're we.
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Old 07-17-2015, 12:08 PM   #7
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How do you fill it up with the water from the toilet and do you ever use a wand.


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Old 07-17-2015, 12:12 PM   #8
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Yes, from toilet and or wand. I suggest having everyone #2 in the main bath and use 1/2 bath for #1 only.
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Old 07-17-2015, 12:24 PM   #9
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Could use a short hose from laundry spigot. ...
Oh by the way... if you use one of those valves on the discharge pipe to send water back up the line to flush the tank. Remember that the drain for the washer allows water to go into garage if not careful.
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Old 07-17-2015, 12:29 PM   #10
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The drain pipe for the washer uses the same drain path / pipe as the 1/2 bath and kitchen sink.....
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