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Discuss BS 1212 Part 2 Air gap in the Water Regulations area at UKPlumbersForums.co.uk.

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  1. Readingplumber

    Readingplumber Member

    Hi
    Am unable to find a clear answer to this -

    But the water in the cistern with BS 1212 part 2 float valve what is the highest water category that it can be?

    Im thinking category 3 has in F and E tank not been able to find anything written in WRAS guidebook.

    Can anyone clarify this?
    Thanks!
     
  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Cat 5 if you drill the holes to spec
     
  3. sammathias

    sammathias GSR

    Cat 4 I think. Sorry Shaun ;)
     
  4. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Ab air gap (standard tank spec / layout) if you drill the holes correctly are fine for cat 5 risks
     
  5. Readingplumber

    Readingplumber Member

    Hi thanks so far but just normal tank with 1212 part 2 valve With out adding extra weir holes into it.
     
  6. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Correct only thing overflow must be sized correctly and terminate to outside

    If into stack / waste pipe needs to have an air gap

    Weir holes is an AA air gap

    IMG_3651.PNG
     
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  7. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    What you planning on doing that's cat 5 risk ?
     
  8. Ric2013

    Ric2013 Plumber

    Rainwater, perhaps? I think that can be cat 5 due to bird faeces?