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dpgllg's avatar
dpgllg
Explorer
Aug 23, 2017

Winterizing black tank using outside shower line

Hello, I was researching how to winterize our new 5th wheel that has features that our old 5th did not have. I found this you tube video stating that I could use my outside shower connection to pum...
siggyd777's avatar
siggyd777
Explorer
Aug 23, 2017
I just DUMP the black tank , close the valve & put a 1/2 gal. of
RV antifreeze down into the toilet. Never had a problem in cold
Chicagoland. I do the same for the gray tank by putting antifreeze
in every sink / shower trap.
Siggy

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