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  1. I

    AA AB air gaps

    Thanks for your info. Do you know if its ok to cut into side of tank ?
  2. I

    AA AB air gaps

    Is their a kit that you can get to fit an AA AB air gap to a fiber glass water tank ? Is it advisable to cut into tank for an air gap ? It is a large commercial tank
  3. I

    Water tanks

    Can anyone tell me in layman terms what AA or AB air gaps are, as I have been told by water board to get them fitted
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