Drain anything that holds water. I then use a large wet-or-dry shop vac to get the water out of toilet bowls after flushing the toilet. Turn off the water supply, open all faucets. If the lowest point on the supply line can be opened and drained, do so. But typically for the supply lines, just opening the faucets will do the job. As water freezes, it does so gradually starting at the walls of the pipe. That will push the liquid out as the freeze expands if the faucets are open. Use the shop vac on the open faucet and on the drains to clear the traps if desired. I use no chemicals.

Here in upper New York state it gets darn cold. I live in mine year around so I don't have to winterize. But those that do, do it this way.
BYPASS the hot water tank. Requires extra plumbing. Then drain that. Then open all the faucets and valves. Next they connect a pump to the water line (everyone here has this connection previously install) and pump in anti-freeze until it comes out of every tap. Takes about 5-8 gallons. This anti-freeze is not the same as for cars. It is specially designed for home water pipe use just in case you accidently drink a drop or 2 after you put the water back in. It stays liqid down to minus 50.

Thanks a bunch for the replies,I will hope for the best, keep you posted next spring.

If you want to winterize your mobile home you really need to do the following...

1) Get under the home and turn off the water.

2) Turn off gas to hot water tank. If electric find the breaker and turn it off.

3) Drain the hot water tank.

4) Open up all facets so that the water will drain faster.

5) Hook up air compressor that hook up to the washer machine. Putting pressure in the system to blow air out of all water outlets.

6) Put antifreeze into sink traps and showers.

7) Flush toilet and fill with antifreeze in tank.

See more here: http://www.mobilehomesell.com/winterizing-mobile-home/