Results 1 to 6 of 6
  1. #1
    Join Date
    Aug 2016
    Location
    Bristol
    Posts
    179

    Default Anodes for Portishead mobo - Aluminium or Zinc?

    Hello once more .

    Quick one... alum or zinc?

    I understand zinc for the channel... but i think portishead is river-fed... and it'll spend 99% of its life sat moored up... so would aluminium be a better option?

    (Boat: 6.4m Sealine 195)
    YouTube: Gorjus Boating
    Boat: Sealine 195

  2. #2
    Join Date
    Aug 2007
    Location
    Midlands
    Posts
    419

    Default Re: Anodes for Portishead mobo - Aluminium or Zinc?

    Hi,

    Portishead is not river fed at all, it is 100% channel water. Zincs are the conventional option for Portishead.

    I am a great fan of aluminium anodes however and would certainly not worry about using them anywhere in the Bristol channel, especially if you find yourself visiting Cardiff Bay or Bristol for any length of time.

    Ian

  3. #3
    Join Date
    Aug 2016
    Location
    Bristol
    Posts
    179

    Default Re: Anodes for Portishead mobo - Aluminium or Zinc?

    Brilliant, zinc it is then, cheers!

  4. #4
    Join Date
    Jul 2012
    Location
    Cardiff
    Posts
    153

    Default Re: Anodes for Portishead mobo - Aluminium or Zinc?

    But don't forget if you do go into any fresh water for a fair lenth of time the zink will crust over and wont work at sea.

  5. #5
    Join Date
    Aug 2016
    Location
    Bristol
    Posts
    179

    Default Re: Anodes for Portishead mobo - Aluminium or Zinc?

    Mmm... there's potential for being stranded in Cardiff or Swansea for up to 2 weeks at some point over the upcoming season (if we overnighting and unexpected bad weather prevents seaward return home)...

    ... would that be enough to crust the zinc?
    YouTube: Gorjus Boating
    Boat: Sealine 195

  6. #6
    Join Date
    Jul 2012
    Location
    Cardiff
    Posts
    153

    Default Re: Anodes for Portishead mobo - Aluminium or Zinc?

    I would think 2 weeks would be ok
    2 months would be a different matter.

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