I hear running water in my ducts in my trailor little water preasure a lot of water running

Is the water running out of your air ducts or do you simply hear it? Back to you. Tom

Is the water running out of your air ducts or do you simply hear it? Back to you. Tom

I hear it running and I think my toilet is running also

Let's start with the toilet Open up the lid and check the tank level. It should be 1/2" under the top of the white overflow tube when the ballcock stops filling. Is that OK? Now put some food coloring in the tank and let it set for a few hours. Do you see color in the bowl? Let me know, Tom