Did the same thing when we were newbies. Used a horseshoe post to stir thing up.
We cannot play horseshoes ever without my DW asking, "which one is the $#it stick?"
Just close the valve, stir with stick of choice, fill with water and let it rip. Lesson learned, cheaply. Good luck. Enjoy your rig.
2001 Ford F-350 Super Duty CC Dually, 7.3 Diesel
2013 832IKBS Flagstaff Classic Ultra Lite, Hensley Arrow Hitch, Carlisle tires
2016 days camped....211, it ain't over yet!
On the road to ALASKA May 6, home Sept. 13, 2016. 23 states, 3 Canadian Provinces, up to the Arctic Circle, 17,300 miles, 131 days on the road. 1 flat tire, 4 oil changes. What a beautiful trip!