Originally Posted by dwapperson
Thanks, my valve is located in the same position, but water will not come out. The trailer is level and I know the tank is 2/3 full. I did read about blowing compressed air into the system from the fill line, but it seems like it should drain without doing that.
Mine empties water freely by simply opening my drain valve without opening faucets or the fresh-water gravity fill cap (which has a screened vent next to it).
Since you're sure fresh tank is nearly full and not draining, on mine I'd suspect perhaps a clog at the valve outlet caused by insects/mud or perhaps within the tank at its low point.
Personally, I would not apply air pressure to my tank at all, the most I'd try on mine might be a very low pressure back-flow of water using my fresh water hose at the open valve. More than likely, I'd be at my dealer for warranty service.
The air pressure you may be reading about are others' discussioins about applying very low-pressure at your city-water connection with a special fitting to clear your water lines (not fresh tank) for a particular winterizing technique. Typically, your water lines are cleared by opening the two colored low-point drain lines located elsewhere. There are whole different sets of instructions for that.
Don't confuse your fresh water tank and your city water connection.
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