Angel, I don't have your water tank so I can't offer any advice re an alternate way to drain it. My OEM tank does not use an anode rod and the drain is a nylon plug that I remove to drain the tank each winter. Since it's nylon, there's no danger of stripping threads in the tank.
I don't really think an RV tank needs an anode rod. It is not used like a home water heater, constantly 24/7. My advice would be to replace the anode rod plug with a nylon plug, you can buy them at ACE hardware, among other places, and just drain the tank that way.
Hi-Lo 1707T - Tire Minder TPMS on Tow Vehicle and Trailer, 300W Solar Battery Charger, Equal-i-zer WDH, Progressive Dynamics Converter, Fan-Tastic Fan
2014 F150 Platinum 4x4 3.5L EcoBoost SCrew