Curious as to what this is and what is it used for? Maybe tubing to suck up antifreeze - but there isn't a valve to isolate from the water tank. Pump drain? Nothing in the owner's manual...
Trailer: 2009 Escape 17B 2020 Toyota Highlander XLE
Posts: 17,136
Here's instructions for winterizing using the low-point drain (if you have one ). I open it, drain, close it and then pump RV antifreeze through the city water inlet.
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Trailer: 2009 Escape 17B 2020 Toyota Highlander XLE
Posts: 17,136
Thetford changed a flushing valve in the toilet in order to make it quieter. Unfortunately, the new toilet retained water even when the low-point drain was used, which would freeze, and Thetford didn't tell anybody what they had done.
So, ETI stopped installing the low-point drain, because it no longer drained the entire system.
__________________
What happens to the hole when the cheese is gone?
- Bertolt Brecht