the big thing that you have to winterize, if you live where the temps go below freezing, is the water system.
Drain all of the water that you can by opening all water lines valve, removing the plug or anode rod from the water heater. Then bypass the water heater. You need to turn 1 to 3 valves if the bypass is all ready installed. The number of valves depends on the bypass itself. Now you have a choice. You can blow compressed air through all of your water lines, or pump RVantifreeze through all of your water lines (do not put RV antifreeze in the water heater, that is why you bypass the water heater), or you can blow air through the lines and then pump antifreeze through the line afterward. You need to close all of the valves you opened (except the fresh water holding tank) and buy a "nipple" that screws into the city water supply if you are going to blow air through the water lines. I always keep one water faucet open when the compressor is running. Open one valve, turn the compressor on. When water stops coming out open another valve and then close the first valve. Go around the camper doing this at all water exits, sinks/shower/toilet/outside shower. If you are going to use antifreeze you will close the valves and IF your unit came with a hose attached to the water pump turn the valve on that hose, put the open end of the hose in the jug of RV antifreeze and turn the water pump on. Then go to each water exit and open the valve until the RV antifreeze comes out. Pour 1/2 a cop of the RV antifreezw down each drain to fill the trap in the drain line/
A few notes: Only use RV antifreeze which is usually pink, scented antifreeze will make it harder to get the scent out of the water lines when you dewinterize the camper, with the water pump turned off go outside and open the city water connection. Pull the screen/washer cover out and you will see a white plastic thing (it is a check valve that prevents water from coming out of the city water connection when you are using your water pump and fresh water tank), push on the end of the check valve and some RV antifreeze will come out. When your black and grey tanks are empty pour some antifreeze in them (if you want, I don't except what goes in when I am running the antifreeze through the water lines). If you can't empty your fresh water tank pour some antifreeze in there if you want. There is a lot of room in the holding tanks for the small amount to water that is in an "empty" holding tank to expand without harming the tanks. If you don't have the hose attached to the water line near the water pump to suck the antifreeze out of the bottle buy yourself a manual RV pump and pump the antifreeze through your water lines.
No I am NOT retired. I work full time.:D
Tracy from Central PA
2010 Jayco 17Z Ex-Port
2004 Ford Explorer V8 with the tow package
2010 Camping Stats
Nights Camping 132 - Nights Camping in My Z 102
2011 Camping Stats
Nights Camping 107
2012 Camping Stats
Nights camping 133 - Nights camping in my Z 128
2013 Camping Stats
Nights Camping 66 Nights