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Old 07-09-2017, 08:49 PM   #1
Junior Member
Brand: Thor Motor Coach
Model: Four winds 26b
State: Illinois
Posts: 29
THOR #6565
Waste water

I just picked up a four winds 26b earlier this spring and after I fixed all the bugs (nothing major) we love it but have a question about bathroom sink, does it drain into the grey or black tank? I'd prefer it drain into the black but either way is fine. Just help with waste water management as we mostly stay in state or coe campgrounds with electric only. Thanks in advance

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Old 07-09-2017, 09:06 PM   #2
Axis/Vegas Enthusiast
JamieGeek's Avatar
Brand: Thor Motor Coach
Model: Axis 24.1
State: Michigan
Posts: 9,432
THOR #1150
Call Thor and ask for the waste water diagram--in fact ask them for all available engineering drawings for your coach.

Typically on Thor motorhomes the bathroom sink goes to the black tank (shower and kitchen sink go to grey).
2014 Thor Axis 24.1
2021 Mach-E
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