Black tank flush - valves always open?
The label next to the inlet for our black tank flush says that the drain should always be open for flushing. Why is this? Is this really a concern, or is this just there to make sure somebody doesn'...
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There have been quite a few on here that have left that closed while flushing and got distracted and flooded their campers. I believe a lot of it with the label is one of those attorney things
