The ceiling, walls, floors will be wet, and you could also see water staining. You can also see mold growth on an area that has been wet for a short period of time.
If you cannot visibly see the damage then you should order a house inspection, or talk to your home owners insurance company about this situation.
Because there is a leak in the pipe of the water main.
A roof leak will only be around when it's raining and a plumbing wall leak will be there forever. Which do you have? Food coloring in water and poured down suspected leak paths is very useful. Use different colors.
if the water was not shut off there must be a leak some were try looking out side for signs of water were the supply line comes in off the main. call the water deptartment to check it out
There must be a leak in one of the pipes in you house.
No, it is just for the house and contents.
the signs of a valve cover leak are oil on the engine oil is the only thing that can leak from a leaky valve cover
Possibly, but the supply lines should be in the wall. Even on a slab house, the water should come into the house at the water heater and then be in the walls. Possible heat vent leak? I'm assuming a slab house because if there was access underneath, you would be able to tell if there was a leak.
There are many ways one could detect whether or not their home has a water leak. If one suspects a water leak in their home, they should check their water meter and also their water bill for unusual activity.
The water could be coming from a coolant leak higher than the plugs on the engine. Look around the head for signs of any leak as it is possible that there is a head gasket leak.
2 most obvious signs of exhaust leak are noise and smell of exhaust fumes
You may have a leak you dont know about. Check with the Water Utility - somtimes they will come out for free. Yep, they will. If you hear water and nothing is turned on, you have a leak. Shut off your water from inside your house (shut-off is located where your water line enters the house). If the whooshing goes away, the leak is inside your house somewhere. If it still makes the sound, the Water Utility will shut off the curb stop. If the whooshing stops, then the leak is between the curb stop and your main shut off (ie. there's a leak in your main service line coming into your house). In general, it will be your responsibility to make this repair as it is on your side of the curbstop. If the sound persists, it is coming from the public water main and Water /utility Crews will locate with a stethoscope and make the repair at no cost to you.
You have a leak (maybe a toilet) in the house, or between the house and the well. It could also be a leak in the pipes in the well. The last thing would be a leaky checkvalve. A waterlogged tank will make it seem like a larger leak because of the small amount of water it takes to turn the pump on and off.