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Thread: Racking Arm Cleaning

  1. #1
    Join Date
    Aug 2019
    Location
    Switzerland
    Posts
    4

    Racking Arm Cleaning

    Dear all,

    We received our new unitanks last week and I am now cleaning everything. I have a small question about the racking arm cleaning. Our arms are looking like this one https://www.aliexpress.com/i/4000094989023.html. Do I need to disassemble them for cleaning? If yes, how should I do it?

    Have a nice day!

    Greeting from the Swiss Alps,

    MichaŽl

  2. #2
    Join Date
    Nov 2010
    Location
    Carmel, IN
    Posts
    59
    With an easy to disassemble tri-clamp, I'd say that you should plan on disassembling when the tank is empty and cleaning that rotating connection and swabbing or brushing the tubing. It shouldn't cost you more than a few minutes.
    WaterEng
    Engineering Consultant

  3. #3
    Join Date
    Oct 2002
    Location
    Chesterfield, UK
    Posts
    1,954
    Definitely. The space between the arm and the housing will accumulate yeast and other debris, and it will not get washed out by the sprayhead deluge. Unfortunately no-one that I know of has managed to come up with a properly hygienic design yet that allows you not to strip down every time you clean or reclean / resanitise. Brushing out the tube is required, then ideally sink in a fittings bath for a while, suggest during the main vessel cleaning cycle, with a loose blank cap (or blank cap and bleed) on the tank fitting. Simply soaking the tube will not guarantee long term hygiene.
    dick

  4. #4
    Join Date
    Jun 2011
    Location
    Richmond, VA.
    Posts
    443
    after the tank is empty, i do a caustic cip making sure the liquid level is well above the raking arm. make sue the raking are is pointing down and allow some of the solution to run out he arm. when cip is over i drain as much of the solution out the arm as possible and soak it in a bucket of caustic solution until its ready to be used again.

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