The water pump for the fresh water is a pain to get into, but it is in the rear left of the gemini. To access it, open the the storage bay in the back of the RV. Insert your hand to the left and you will feel a little piece of wood with a hole in the middle of it. With your finger or a tool in the hole, pull on this piece of wood, and it will become unattached. You will then see the water pump. The tank drain is to the right of the water pump. The winterization inlet is there also. The low point drains are under the left side of the sink.
Hope this helps. It took me a while to figure out where these things were. When you find out how to repair the skylight frame, let me know. My email is email@example.com
. Good luck.... --- Jason