Introduced in May of 2021 have seen the upgrade/redesign of many covers. It is up to each facility to ensure that their covers are up to code.
Grate Markings
Every drain will be marked with all approved flow ratings on the cover. This will minimize questions about what GPM each drain is designed for.
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When installing a drain that conforms to the new VGBA standard, make sure you check for updated flow rates. Do not just assume the flow is the same, even if you have installed the same drain for years.
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