Air Compressor not blowing out lines

Hi [email protected] friends. I am winterizing and have a 12 volt tire inflator that I use to blow out the lines....only it doesn;t. I follow the directions in the manual but when I attach the compressor to the city water intake....the gauge does not move.  I know it works because one year I pushed really hard on the connection and the needle rose...adn I have filled tires with it. Am I doing something wrong?  I open all the lines per instruction...

ALso....I used a gallon of RV antifreeze in the fresh water tank...turned on the pump, flushed, opened the faucets and nada. DO I really have to put 3 gallons in?

2015 [email protected] Max S.  TV: 2015.5 Volvo XC70. 


  • Sharon_is_SAMSharon_is_SAM Posts: 2,986Moderator
    @ELK, you need to keep all your outlets closed, pressurize up to no more than 50 psi, then open a tap to clear the water.  You may need to close the tap and repressurize and do it again.  Do this for your sink(s), toilet, and hot and cold water drains.  How are you attaching your compressor to the city water connection?  You need an adapter to screw into the city water hook up.

    I am not sure how important this is if you are only going to turn around and fill your system with antifreeze.  Regarding the antifreeze and pump, not sure what you mean by flushed?  Are you sure your pump is primed?  You may well need more antifreeze but first you need the pump to pressurize.
    Cleveland Heights, Ohio
    2017 TaB CSS / 2015 Toyota Sienna Minivan

  • ELKELK Posts: 143Member I pressurize by using water? Thereby having to restart the process of winterizing? Thanks

    2015 [email protected] Max S.  TV: 2015.5 Volvo XC70. 
  • ELKELK Posts: 143Member
    I have a 2015 [email protected] with wet bath
    2015 [email protected] Max S.  TV: 2015.5 Volvo XC70. 
  • Sharon_is_SAMSharon_is_SAM Posts: 2,986Moderator
    edited December 3
    After you empty your fresh water tank. Alde tank and hot and cold water drains, then blow out the lines.  You add the antifreeze to your fresh water tank and your pump will pull the antifreeze out of your fresh tank (just like it does with water) and prime the pump/pressurize the system with antifreeze.  Just like when you go to use your empty pump with a full fresh tank of water, it needs to pull the water through the pump and clear the air out.  Once it does that, the pump stops and you then know it is ready to provide service to your taps/shower/toilet.

    Does that help?  Don't think of it as any different than using water.  The pump will work the same with antifreeze.  
    Cleveland Heights, Ohio
    2017 TaB CSS / 2015 Toyota Sienna Minivan

  • ScottGScottG Posts: 2,338Moderator
    I'll add that yes, you probably do need to put more than a gallon of antifreeze in the fresh water tank. Many have reported issues with the pump not priming or losing its prime when the level in the tank is too low. 
  • dsfdogsdsfdogs Posts: 205Member
    I recently watched this informative video from guy testing the blow out method using a tire inflator. I thought it was a good visual.
    Debbie in Oregon
    2018 [email protected] 320 S/2019 Toyota 4Runner SR5
  • jgram2jgram2 Posts: 1,100Member
     So this is how @Verna used her bicycle pump to winterize her 320 all those years! Thanks @dsfdogs! While I understood the concept theoretically, having the visual, especially the 50 ft. garden hose holding a volume of pressure really helped my poor pea brain.
    John, Judi, Guinness & OD in PDX
    [email protected]@t 2015 S Max Outback, ‘06 V8 4Runner 

  • Michigan_MikeMichigan_Mike Posts: 2,342Administrator
    A bicycle pump will work but a pancake compressor works even better.  
    Mike Smith 
    Linden, Mi
    2015 [email protected] Max S
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