Just make sure they only open one gate valve at a time! Black first, then galley (if you have one), then grey. sounds real simple , but I had one operator in CA that pulled all the handles at once before I could stop him and the back water rushed into the grey tanks it was a big mess.
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2013 Raptor 300 MP, MORryde 8K IS, Kodiak disc brakes, 940 watt solar system, 630 ah battery bank, Magnum 2000 watt pure sine wave inverter/charger, ME-ARC, ME-AGS, ME-BMK.
2005 Freightliner Century Class S/T, 14L 60 Series Detroit, 10 spd Ultrashift, w/3.73, Trailer Saver TSLB 3 bag hitch.
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