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Hanna checkers, salinity,Alk, phos

Mastering the art of locking and unlocking water pathways: What type of valves do you have on your aquarium plumbing?

  • Ball valves.

    Votes: 74 51.7%
  • Gate valves.

    Votes: 73 51.0%
  • Check valves.

    Votes: 36 25.2%
  • None.

    Votes: 31 21.7%
  • Other.

    Votes: 9 6.3%
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