Just figured I’d add some content here so I’m just going through old photos/videos.

  • Bigtiddygothgrany@lemmy.worldOP
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    1 year ago

    The ones that are in the pictures of the article you sent are actually effective, the ones that we use that’s acceptable by code still is just a 12 inch pipe with a cap. They don’t really work though because over time the air pockets full up with water so they basically become useless.