winterizing black tank flush with air
I've always been successful winterizing by just blowing air through my water lines. I know there is an anti-siphon valve in the black tank flush system. Will just blowing out this line clear water f...
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I've done it that way on my previous TT. Never had a problem.
On my current 5er, I simply hook up the outside water faucet (sprayer, shower, blue coiled hose, hot and cold faucet) in my wet bay, to my black tank flusher (in my wet bay) then pump the pink RV antifreeze and watch for "pink stuff" to flow out the black tank outlet. Once it flows "pink" out the black tank drain, I know both the outside faucet and the black tank flusher line is winterized.
And by the way, I do this when camping too, so I don't have any dependency to hook up a garden hose to the black tank flusher.
On my current 5er, I simply hook up the outside water faucet (sprayer, shower, blue coiled hose, hot and cold faucet) in my wet bay, to my black tank flusher (in my wet bay) then pump the pink RV antifreeze and watch for "pink stuff" to flow out the black tank outlet. Once it flows "pink" out the black tank drain, I know both the outside faucet and the black tank flusher line is winterized.
And by the way, I do this when camping too, so I don't have any dependency to hook up a garden hose to the black tank flusher.
