water leak

[thiggy]

From your discription I am inclined to think that you have developed a leak underneath the trailer which is spraying on the underside of your floor. Assuming you have ruled out a leak inside the trailer, you will need to crawl underneath and have someone turn on the water to see if you can determine where the leak is located. You will probably need to remove insulation to search for the leak. Get yourself a roll of plastic sheeting and unroll it in front of you as you wriggle under the trailer. Good luck