Co2 tubing

Discussion in 'Carbon Dioxide (CO2)' started by dean, 16 May 2019.

  1. dean

    dean Member

    Messages:
    1,109
    Location:
    Warrington, Cheshire
    Which tubing is safe to use ?
    I ordered some and it’s very rigid and impossible to bend round a corner
    Is silicone airline ok to use ?


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  2. Tim Harrison

    Tim Harrison Global Moderator Staff Member

    Messages:
    6,411
    Location:
    Leicester
  3. ian_m

    ian_m Global Moderator Staff Member

    Messages:
    4,936
    Location:
    Eastleigh
    CO2 "dissolves" in silicone tubing making it hard and crack. You need to use proper CO2 resistant tubing as linked above.
     
    dean likes this.
  4. Siege

    Siege Member

    Messages:
    471
    Location:
    Huntingdon, UK
    Yes very hard to bend.

    You can get glass u-shape bends to go over the top of the tank. Will need to heat up the tubing though to fit that and the diffuser.

    From the u-shape bend to the diffuser you can use normal air silicone if under water. I find it does discolour quickly and has tendency to ‘blow’ off though.
     
  5. obsessed

    obsessed Member

    Messages:
    255
    Location:
    Espana
    I think it's worth investing in the good quality co2 tube as mentioned above as you are dealing with higher pressures sometimes as well.
    Silicon air tube for air.
    Polyurethane co2 resistant tube for co2.
    Warm it up a bit with hot water.
     
    dean likes this.

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