There should be a freshwater drain under your RV. They are usually marked. There is also on most RV low point drains. There should also be a drain for your water heater. If you drain the water heater, make sure it is not powered on...
2016 Siverback 33IK
2015 Ford F-250 Lariat 6.7L V8 Diesel 4WD Super Cab
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