I recommend it. Even with compressed air, you will not get all the water out. The antifreeze takes care of the water you can't get out with the air. Don't forget to put antifreeze in your sink and tub drain traps and some in the toilet and holding tanks.
I put about 3 to 4 gallons in after draining all the tanks. Then I open the faucets, shower, toilet until I get pink coming through each. Let your water pump do the work for you. This will also get your water pump filled with antifreeze, which is good so nothing in it freezes/cracks. Also, we have a couple of drain lines to empty the fresh water tank - I also open those to get them flowing pink as well.
and download the article "Painless Winterizing".
Takes us about 5-10 minutes and about 1 to 1 1/2 gallons of RV antifreeze to winterize the trailer. Make sure to open all faucets until you see pink out of each faucet, don;t forget any outside shower and don't forget the city water connection.
*This Message was edited on 17-Sep-02 03:41 AM by M GO BLUE*
There are simple instructions to follow for the city water connection on the website I asked you to go see...but in a nutshell after you have pumped all AF through the lines open a faucet to relieve the pressure in the water pump, go to the city water connection, pry off the little screen and inside will be a white button and hold that button in until AF runs out the connection. WARNING: Failure to relieve pressure PRIOR to pushung in the white button will blow out your check valve and will need to be replaced.
I have never blown the lines out with air and no of no one that does.
If you do not have a bypass kit go to CW or someplace and get one - cost is about $25 as I recall.
Then simply run the tube from the anti freeze and turn the pump on. Run each faucet until the pink comes out. Pour a little af in the drains and toilet and that is it. Don't forget to bypass the waster heater when you do this; and make sure to drain it. Leave the plug out.
No need to put af in the fresh tank if you drain it - leave the valve open.
DW of 53+ great years, Barbara
2nd Best Friend-"Aussie" Terrier, Sadie
2006 Mobile Suites 32TK3
2006 Chev 3500 3LT XCab 4x4 Dmax Allie
I agree with everything you posted but I have a ??, How do you drain or get AF to your city water connection? I have the WH By-pass and the pump to jug hook-up. I have just ignored it in the past, never thought water would be retained there.