venting plastic barrel for pontoon boat

Discussion in 'Boat Design' started by danamera, Aug 18, 2023.

  1. danamera
    Joined: Aug 2023
    Posts: 5
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    Location: West Asia

    danamera Junior Member

    I use plastic 55 gal barrels for a pontoon boat. I have noticed the barrels shrink when it is cold at night/morning. I know it is recommended to close the barrels when it is cold but given the temperature will still drop in coming months what is the recommended way of equalizing the pressure ? I have read somewhere about making a small hole on the barrels to prevent shrinking and expansion. Is it the way to go or some other ideas ?
  2. Barry
    Joined: Mar 2002
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    Barry Senior Member

    Look up Gortex vents, I think Fallguy or Dog Calvary have used them. They let presure escape but restrict water access.
  3. fallguy
    Joined: Dec 2016
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    Location: usa

    fallguy Senior Member

    Barry likes this.

  4. BlueBell
    Joined: May 2017
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    Location: Victoria BC Canada

    BlueBell . . . _ _ _ . . . _ _ _

    The barrels are plastic, why vent them?
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