Brian J. Posted February 14, 2011 Share Posted February 14, 2011 Hi, could anyone advise me on the advisability of having an annode fitted to my boat when cruising the Broads. I do not have a salty bottom! I have an annode fitted but have never changed it as I only cruised the fresh water Thames. The annode, which is fixed to the rudder, seems to be a bit corroded, but that is only to be expected I suppose as to my knowledge it has not been changed in the last six years. Brian J. Quote Link to comment Share on other sites More sharing options...
TeamElla Posted February 14, 2011 Share Posted February 14, 2011 Brian, Anodes as follows:- Totally fresh water = Magnesium Part salt/part fresh (brackish) = Aluminium Salt water = Zinc Aluminium is the best bet to cover all of the Broads. Magnesium would be extremely over active and dissolve fast in the Gt. Yarmouth area. Steve p.s. if I have made any mistakes, you can be sure that someone will be along soon to correct them Quote Link to comment Share on other sites More sharing options...
Antares_9 Posted February 14, 2011 Share Posted February 14, 2011 I agree with Steve except that if you are mooring in a freshwater area (this is after all where the boat sits for most of its life even if you use it most weekends and for a longer holiday in summer) I would go for magnesium and keep a close eye on it for the first few months in case there are any stray currents in the marina, if you are not connected to shore power then that will be less of an issue. Here is a link to a useful tick box tool that will help anybody select the correct hull anode(s), there is a separate one for engine anodes. Its M G Duff, anodes are all they do and what they don’t know is not worth knowing. http://www.mgduff.co.uk/leisure-craft/hull-anode-selection/ Quote Link to comment Share on other sites More sharing options...
senator Posted February 14, 2011 Share Posted February 14, 2011 Now you are going to tell us that your boat is a wooden broads yacht with no engine or shore power aren't you Brian Quote Link to comment Share on other sites More sharing options...
Brian J. Posted February 14, 2011 Author Share Posted February 14, 2011 No. GRP Freeman 23, brass and bronze underwater fittings. Old man Freeman knew a thing or two. Have arranged for an aluminium anode to be fitted just to be on the safe side. Brian J. Quote Link to comment Share on other sites More sharing options...
Antares_9 Posted February 14, 2011 Share Posted February 14, 2011 No. GRP Freeman 23, brass and bronze underwater fittings. Old man Freeman knew a thing or two. Have arranged for an aluminium anode to be fitted just to be on the safe side. Brian J. I really hope they are not brass if you are erring on the side of safety then you should be using Mag where you are going to be moored, also make sure all the underwater fottings are "bonded" to the anodes. Quote Link to comment Share on other sites More sharing options...
Brian J. Posted February 14, 2011 Author Share Posted February 14, 2011 Phew! Just checked and all underwater fittings are bronze. Seems as if I needn't worry too much then. Brian J. Quote Link to comment Share on other sites More sharing options...
Happy Jax 3 Posted February 14, 2011 Share Posted February 14, 2011 Here's a question, Why or how do hire boats or ex hire boats such as HJ11 get away with no anodes? Quote Link to comment Share on other sites More sharing options...
Hockham Admiral Posted February 14, 2011 Share Posted February 14, 2011 Col, Hi I replied to this thread about an hour ago......... must have hit the wrong key? We bought Friday Girl from Barnes Brinkcraft a year ago and I asked Matthew Thwaites that question. He said they'd never fitted them and hadn't ever had problems.. perhaps it's because Wroxham is fresh water and hire boats don't usually have shore-power fitted? By the by, where was HJ11 last week when we passed Reedham? Quote Link to comment Share on other sites More sharing options...
Happy Jax 3 Posted February 14, 2011 Share Posted February 14, 2011 Hi John We are now tucked up safely inside the Marina. Col Quote Link to comment Share on other sites More sharing options...
quo vadis Posted February 16, 2011 Share Posted February 16, 2011 AM i just too clever or what? I've had some plasic ones made. they'll last forever Quote Link to comment Share on other sites More sharing options...
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