Cost of Anodes!

[newtothis]

"TT" = "TB Tested"?

Time trial... they're the bikes with the funny looking aero handle bars.

 

[mainsail1]

Just ordered new anode for my Brunton auto prop at the same price as 2019. £32 each.

 

[Habebty]

Ring anode for my Selva sail drive - £72. I have bought 16 over the years!!

 

[mjcoon]

Time trial... they're the bikes with the funny looking aero handle bars.

View attachment 114913

Thanks, but I'm afraid "aero handle bars" meant nothing to me. And I never much liked aero bars, either; clever dilution scam, though!

 

[Blueboatman]

Good question although they don't erode, which is a wear process, they corrode. The mechanism seems to be pitting, at least on all mine, pits maybe 6-8 mm across. Pitting is definitely a surface process.

Anodes used to be pure zinc but modern versions are alloys with a number of small additions of other metals. I doubt that this would make them spongy but it could affect the pit size and shape.

Thanks Vyv
I tried angle grinding the removed main ‘ pear’one out of curiosity , it did seem rather crumbly and beyond that I could not determine much ?
Interesting that they are an ( expensive )alloy
Ta muchly

I do remember the expression “ mad as a hatter” , something to do with inhaling zinc fumes ?? So I didn’t try grinding too hard

 

[FairweatherDave]

Thanks Vyv
I tried angle grinding the removed main ‘ pear’one out of curiosity , it did seem rather crumbly and beyond that I could not determine much ?
Interesting that they are an ( expensive )alloy
Ta muchly

I do remember the expression “ mad as a hatter” , something to do with inhaling zinc fumes ?? So I didn’t try grinding too hard

Oh dear. I got my angle grinder out on my pear anode. Hope I got the wind direction right. I was pleased with the resulting look of the anode. I did it in situ on the hull.

 

[Sailfree]

Need to do a search on here as always collected anodes and intended to cast the simpler tear drop one.

Appreciate it wont save money after buying melting plumbers pot etc and gas ring.

Anyone done it?

I did foundry practice at secondary school bit that eas 60yrs ago. No H &S then! But we were warned the doors opened inwards!!

 

[Hacker]

I do remember the expression “ mad as a hatter” , something to do with inhaling zinc fumes ??

no, it was to do with ingesting Mercury.

 

[NormanS]

For years now I have been making my own anodes for my Autoprop. Is that not what all these old anodes that people leave lying about are for? ? I'm sure that making your own isn't cost effective, but I like making things. The cost is a bit of work, but no money.

 

[mjcoon]

I do remember the expression “ mad as a hatter” , something to do with inhaling zinc fumes ?? So I didn’t try grinding too hard

No, not zinc fumes; more likely mercury: wikipedia.org/wiki/Mad_as_a_hatter

 

[Blueboatman]

Hacker and mjcoon, ah thank you ..

Dotage brain kicks in and remembers people take ‘ zinc’ supplements I believe . Doh ?

 

[savageseadog]

Zinc fumes are a hazard.

 

[mjcoon]

Zinc fumes are a hazard.

I see from my Kaye and Laby (not Wikipedia, for once) that the melting point is 419.5°C (footnote: a point on the International Temperature Scale) and boiling is 907°C. So just a hazard for foundry workers?

 

[Stemar]

I rather think anything at 907°C is a hazard

 

[vyv_cox]

I see from my Kaye and Laby (not Wikipedia, for once) that the melting point is 419.5°C (footnote: a point on the International Temperature Scale) and boiling is 907°C. So just a hazard for foundry workers?

Welding galvanised steel creates dangerous fumes and also leads to brittle welds.

 

[savageseadog]

Welding galvanised steel creates dangerous fumes and also leads to brittle welds.

As the subject of dangerous fumes came up I thought I'd mention the zinc issue. Welding does generate zinc fumes, unsure of composition, I don't know if smelting generates similar, the metal probably doesn't need to be "boiling".

 

[mjcoon]

I don't know if smelting generates similar, the metal probably doesn't need to be "boiling".

No, very true, "Boiling" is just when the steadily increasing vapour pressure with temperature happens to reach atmospheric. Any pressure means some is evaporating... Mercury amalgam tooth fillings, anyone?

 

[Seven Spades]

Just found this ..
Online bike parts retailer Dutch Bike Bits has announced that with the advent of Brexit, the UK will become the only country in the world to which it will not ship goods. The firm explained that this was because the UK is now asking overseas firms to apply and collect British taxes on behalf of the British government when selling to UK customers.

From January 1, the government introduced a new model for the VAT treatment of goods arriving into Great Britain from outside of the UK.

It says these measures ensure that goods from EU and non-EU countries are treated in the same way and will mean UK businesses are not disadvantaged by competition from VAT-free imports.

The point at which VAT is collected has moved from the point of importation to the point of sale and online retailers are therefore being asked to register for UK VAT and account for VAT to HMRC.

Dutch Bike Bits said that for this service the UK government intends to charge a fee, “to every company in the world in every country in the world which exports to the UK.

I have been banging on about this for a long time. This was started by the French and before Brexit and has been adopted by most countries in the EU. It was a move against Amazon to protect local businesses. If you sell more that €25,000 to French retail customers you have to register and charge French VAT and if you are a really big retailer you might have to register in all 27 countries making 27 VAT returns a quarter! The single market was being destroyed way before Brexit. Even Australia has copied this approach, so now I have to watch carefully the value of retail exports to Australia so that I don't have to register for Australian VAT returns.

The world is becoming very protectionist. I think that it is simply the wrong approach, VAT should be collected at the point of import it shoudl not be at the point of export. It makes trade unnecessarily difficult for small to medium sized businesses. Large businesses like Amazon will not be phased by these inconveniences so ironically the legislation is having the opposite effect.

 

[Tranona]

I am afraid your story of the origin of the new rules is a bit off beam. Nothing directly to do with the French, nor particularly aimed at Amazon. The origins date back nearly 10 years and it is an EU initiative, but implemented early in respect of the UK to coincide with Brexit, but will be EU wide later this year. Once it settles down it will be a much more efficient way of ensuring that VAT is applied correctly and will curtail the huge trade in goods from overseas (particularly China) that enter the UK/EU avoiding paying taxes and duty .

 

[jhr]

To return to Jimi's original question: have you considered following the advice of the late lamented Haydn (hlb) and installing stainless steel anodes? Apparently they last for ever