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700 auto air vent

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joebear
joebear Member Posts: 2
in THE MAIN WALL
when using 700 auto air vents,does the cap need to be loose to vent air or can air be vented with cap closed?

Comments

  • Unknown
    Unknown
    700 auto air vent

    I must be tired,,,,, who makes that?
  • joebear
    joebear Member Posts: 2
    700 auto air vent

    amtrol
  • Big Ed_4
    Big Ed_4 Member Posts: 3,348
    Depends

    The older models with the schrader valve , the cap needs to push down on the pin just a little vent out the air .. The schrader valve was a secondary valve ... Seems like they added the schrader as a safety valve ...Cap fully closed , open or missing the vent is closed ....

    i cut one apart years ago when this question came up ...



    In the newer models the schrader seem to be deleted ...



    Second note.... From inside their paper work , you should set the cap just slightly loose . They don't want a rush of air, water and dirt to foul the valve seats ...

    There was an error rendering this rich post.

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