Also tell insurance yourcompany.
WE had a valve broke in the middle of the night and it flooded our trailer in the 1990's.
We called our insurance to let them know.
I told them I don't know if any damage or not as I'm drying it out. I'll know more when it gets dry'd out.
I got trailer dried after about 2 weeks (using a moisture meter) to make sure it was dry.
I totally forgot about calling back our insurance company being everything turned out OK. About 3 years later I get a letter from them saying they will close out the "pending potential claim" if I don't respond within 30 days as they needed to close out pending claim.
I don't know if we would of been paid or not or what steps to take after that, but at least insurance company couldn't say its to late to claim after initial damage.
Also highly recommend a "moisture meter", maybe a $30 or $40 dollar from big box store so you can measure wetness. What looks dry on the surface might be a different story a few centimeters underneath the surface.
Ever since that experience I don't use city water at all and also I installed a on/off switch for the water pump located in bathroom. Pump is always shut off when we leave RV or go to sleep. And it's easy to turn the pump on in middle of night in the bathroom.
You never know when you'll have a plumbing failure, the fresh water tank has a limit how many gallons can flood. On city water, pretty hard to run out of water.
Hope this helps
(post was edited so a 3rd grader can now understand, I hope.