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Winterizing Spray Unit and Tank

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  • Winterizing Spray Unit and Tank

    Title pretty much says it all. What's the correct process for winterizing a spray unit with a poly tank and banjo pump?

    TIA

  • #2
    Not sure on the poly tank part but we always drain our tank, pressure wash the inside out and cycle a good amount of rv antifreeze through the plumbing and diaphragm pump before draining. For added protection if the set up isn't stored inside I remove the pump and place inside. Leave all your valves about half open. On the ploy tank I would probably drain it well and rinse it then vacuum all the water out or dry with an air hose
    Warren

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