I don't disagree with their assessment. But I do disagree with their thinking the gauge is accurate. RV gauges are notorious for being wrong. I'll bet your tank is actually fuller than it indicates, but it really matters little. The tank does need to be vented to prevent a vacuum when the pump runs, but it certainly does not need that much. Good luck
Bill
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If you are afraid to speak the truth out of fear of what others may think, it says a lot about who you are and what you will settle for.
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