Quivox Posted October 27, 2022 Report Share Posted October 27, 2022 I am now moored in a marina on part of the Norfolk Broads with Brackish Water. I have a 31ft aluminium Sea Otter boat so should I be concerned about Electrolysis. Any help would be much appreciated Thanks Link to comment Share on other sites More sharing options...
sueanddaren Posted October 27, 2022 Report Share Posted October 27, 2022 Being a Sea otter it probably has a GI already and the marine grade of Aluminium they use is also used on lots of sea going boats, Link to comment Share on other sites More sharing options...
Alan de Enfield Posted October 27, 2022 Report Share Posted October 27, 2022 (edited) Ensure you have Aluminium alloy anodes fitted. Magnesium will fizz and dissaper within weeks. Aluminimum is the correct material for Brackish water. Edited October 27, 2022 by Alan de Enfield Link to comment Share on other sites More sharing options...
Jen-in-Wellies Posted October 27, 2022 Report Share Posted October 27, 2022 6 minutes ago, Alan de Enfield said: Ensure you have Aluminium alloy anodes fitted. Magnesium will fizz and dissaper within weeks. Aluminimum is the correct material for Brackish water. On an aluminium boat? Link to comment Share on other sites More sharing options...
Alan de Enfield Posted October 27, 2022 Report Share Posted October 27, 2022 56 minutes ago, Jen-in-Wellies said: On an aluminium boat? Yes - you will note I said Aluminium ALLOY Especially made for brackish waters to replace 'zincs'. In the Galvanic order Zinc is too close to 'boat' aluminium. Note the positioning of the Alumimium alloys used in anodes (located between Zinc and Magnesium). Link to comment Share on other sites More sharing options...
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