Heres a thought

[Guest]

There I was on Tuesday with boat on straps, after pressure wash, busy unbolting the zinc anodes, whilst
my friend John was inside the aft cabin with a spanner, just in case there was any movement inside,
which happened to the stb forward bolt in Brighton last May when I put them on.
Not being able to hear each other through Brooms substantial hull we had to converse over mobile phones,
like "any movement John" whilst I'm tightening the nuts.

Noticed the stb one had precious little left but the port was like new. Seems the wire connection
one end was perished. Do they have to be connected both ends ???????????? by the way.

I had to change the anodes from Zinc to Magnesium for reasons
we are all aware of right. So two £15 anodes equate to £312 lift out plus our time expensive a?

Anyway back to the thought of the day

Whilst driving home my mate John suggests why don't boats have two sets of anodes one zinc one
magnesium then when you get to either the sea or fresh water for extended periods, you could
just change over the wires inside.

cneighbour

 

[kimhollamby]

Here\'s an answer...

...because the mag ones (or aluminium as used on some steel boats) would dissolve too quickly in salt (okay, so no current should be passing but I'm not sure there wouldn't be some interaction due to damp etc) and more certainly the zinc ones would scale up in fresh and need a scrub off to be effective.

If in mixed water for the season I always used to use zinc and just accept the fact that they might benefit from an abrade over after an extended period on fresh after I got back to a bit of sea where a swim seemed an okay idea.

Associate Publisher ybw.com websites kim_hollamby@ipcmedia.com