Alternatively to having it drained can you use a macerator pump system to pump it into someone's toilet? You can also get an inexpensive pump that connects to a garden hose for the gray water.
One on Amazon says $95 and connects to normal outlet valve and would work for both black and gray if you can find somewhere to pump into a toilet.
Re-useable and cheaper than a septic truck coming out more than once.
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2017 SLX 195RB
2021 Jeep Grand Cherokee Summit L 5.7L V8
Andersen WDH hitch, Renogy 100 AH Lithium &
200 Watts solar panels from Renogy
Prev. '14 Jeep Grand Cherokee Overland, gas 3.6 V6
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