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Old 09-26-2023, 06:55 PM   #1
Gonefishing
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Tanks

Just purchased a 3761fl 2021 has 4 drain tanks 2 black 2 gray. Anyone know which is which.?
 
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Old 09-27-2023, 12:13 AM   #2
rohrmann
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Best to just get some food coloring, put some in one of the toilets or sinks, and when you drain tanks, through a clear drain fitting you will know which tank goes with the drain pull that the dye shows up with. The next time you are draining tanks, do the same thing to another area.
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Old 09-27-2023, 07:18 AM   #3
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Agree with rohrmann's post above. But, I'd do it a little different.

Drain all tanks completely then close all the dump valves. Turn on a faucet (say, the bathroom sink) and let it run for a couple minutes. Pull each valve and see which one drain. Mark that valve. Now repeat with a different faucet, say the kitchen. It would be good to test all the valves again, because you just never know how things "could" be plumbed. Bathroom sink and shower could run into the same tank with the toilet, and then, it might not. So check each water faucet, toilet, shower. Then you'll know for sure, because you sure can not trust any labels on stuck on the trailer.
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