I was just winterizing. Hooked up to outside shower blowing antifreeze into the flush line then unhooking. If I pull the shower connection out I expect that I will get the blast from the other end of the short hose. I would not expect that I am meeting any resistance in the flush line so this is the surprise.
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Gary and Sandra
Edmonton, Alberta, Canada
2015 GMC Sierra 2500HD
2018 Montana 3120RL
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