Finally, someone who knows the corrosion subject and can explain it really well. Thanks.

@jay_leng

2 жыл бұрын

Especially when those tech things explained by a nice and beautiful lady, amazing!

Girl talking about technical aspects.., amazing! ))

Outstanding! Thank you for taking the time to explain this :-)

I'm in a fiberglass monohull...37 ft Ketch....after watching the Finnish people in their Aluminum vessel I now want one....thanks for explaining about Aluminum.....sail safe

Well done! Superb explanation of all that info about corrosion and its various types. I only stumbled on your channel today, I will stay to learn more.

Well done, very informative video....you guys rock! Thanks, Andrew

haha most people just talk about the difference in the nobility of metals, of course the good doctor talks about the difference in potential electrochemical voltage, which is the correct way to explain galvanic corrosion. Be sure to get a galvanic isolator for your shore power connection - it will stop stray currents from other boats from eating away at your boat/anodes when it is on shore power.

Thank you for the clear explanation!

Thank you for a very informative vid👍🏾

Wow, I was just searching some info regarding aluminium.. came out over your video and I enjoyed it so much! Very nice info about corrosion and video itself is such nicely made. You got yourself a subscriber right away :)

Great presentation of the decomposition potential regarding Aluminium, best I've seen. Thanks.

Hoooo, finally a very clear explanation... thank you Dr. Sheddy :)

Your knowledge is amazing.

I’ve heard this explained many times, but never this clearly. Thanks!

Very helpful. Appreciate it.

Always loved and adored it when the scientist inside shoe comes out... Thank you professor I truly appreciate it when you are able to actually explain things to us individuals that are missing a couple of molecules it's always during Lee one of your fans forever

You are a sweetheart. Very knowledgeable. Settled a problem for us. Thank you

Good job! Thanks!

This video is fantastic thank you so much

Learnt a lot from this video. Thanks.

You are awesome! Informative and entertaining. Aloha!

Really good and simple explanation

At last a clear explanation on electrolysis!

Doctor you have got to be the most noble person I know of on the internet and believe me I watch a lot of sailing channels and you are the queen of nobility

Very interesting, thanks. It’s interesting that you’ve painted the bottom of the hull. I wonder if you considered just leaving it bare and increasing the anode mass to compensate. A small chip in that coating and you could get rapid corrosion at that spot due to high proportion of the coated surface (which will become the cathodic site) compared to the chip (which will become the anoxic site).

Excellent video..

very good explanation 👍

I had to pause the video to comment how informative this is, thanks, great work, I'm subscribed now :)

@VetTails

3 жыл бұрын

Thanks so much! Its definitely a topic I wont begin to know everything about, but grateful I was able to learn the basics as I went owning Chuffed

Very good video with 1st hand experience and information.

..., je t'adore DOCTEUR, continue ainsi BRAVO!

Great explanation! Glad to see you doing so well, medically, mechanically and electrically and other stuff too!

@VetTails

3 жыл бұрын

Thanks so much!

@pieterbezuidenhout2741

3 жыл бұрын

Got me worked up with that " sacrifice " for a moment but being so straight honest and beautiful awwww well 🤗 💝 💖.

your smile catched my heart so that I just ignored the content..

Great Video! I learned more in 8 minutes about aluminum than I ever though I could.. great job on explaining everything.

@VetTails

3 жыл бұрын

Glad it was helpful, thanks!

@cpgeorge4442

3 жыл бұрын

how and what can you do to add Anodes to the Alu boat ?

That was awesome, you explained that so well and easy for people to understand.

@VetTails

3 жыл бұрын

Glad you think so!

@mauriceryton

3 жыл бұрын

When the connecting screws on the roof of the parking garage all rusted out when we had an interest in a condo in Mexico. No one believed me that it was because there were two different metals in contact. A few looked it up and were astounded it was indeed true. The builder should ever have used two different metals which was in reality three metals. The steel roof structure, the metal roofing and the subsequent incorrect metal screws. I think you have done such an amazing job, from scared, frustrated and in tears to in control and fully aware of the workings of your boat.

Great video! Many thanks for sharing.

@VetTails

13 күн бұрын

Thanks for watching!

Thumbs up! After 30 years living on or just sailing around the globe that was the best simple explanation ever. Top marks

Wow. Loved the info. Thanks!

@VetTails

3 жыл бұрын

Glad you enjoyed it!

Thank you. Great vid. I finally understand ...

@VetTails

3 жыл бұрын

Great to hear!

I enjoyed that a lot! You did a great job.

@VetTails

3 жыл бұрын

Thank you very much!

Thank you for these informations.For me it's the first video about aluminum boat.I need more.

@VetTails

6 ай бұрын

Yes they require some very specific care! We do some work on the tanks etc in later episodes, and also paint the boat which may help you!

Brief, simple and extremely informative. Always understood the concept and problem of electrolysis in construction and boating. Was great to learn a bit more about the differing natural degree of positive or negative charge in various metals. Fun to know. Thanks. Chuff is your biggest patient. Good luck-Gday.

@VetTails

3 жыл бұрын

Thanks so much I appreciate that!

Bonding is important too!

Very interesting and informative video...take care and stay safe.

@VetTails

3 жыл бұрын

Thanks, you too!

A "must" on an aluminum (or steel) boat is an isolation transformer. Not a galvanic isolator, that helps too, but an isolation transformer. Only this a 100% protection against stray currents in a marina, from either faulty marina installations or faulty installations on other boats.

@VetTails

3 жыл бұрын

Am I right in thinking thats only for shore power? We dont have shore power so all good here ;)

@Jarek12010

3 жыл бұрын

@@VetTails Yes, you are right. But why do you have no shore power? It is the most convenient and quickest way of charging your batteries, when you are in a marina. If the reason for not having shore power is the threat of galvanic corrosion from various marina sources or other boats, then an isolation transformer is the answer. It isolates your hull, galvanically, from any and all such threats.

Brilliant...!

Nice job chica!!! Oh man, so much work to do the whole bottom again 🙈 but little Chuffed will be so thankful for this and hopefully no more pitting from now on 🤞🏼🤞🏼🤞🏼big hug do you 😘

@VetTails

3 жыл бұрын

I hope so! You know the joys of this work ;) Miss you!

Great channel, good variety, good people

@VetTails

7 ай бұрын

Thanks!

Great explanation of corrosion and how it works.

@VetTails

3 жыл бұрын

Thanks 👍

well done , very good .

Seeing some of the corrosion damage and all the other issues that Chuffed had I was very skeptical that you would ever be able to do all the renovation work that she needed ! Now that I know how much work has been done and the time you have put into it I know I was wrong, you are one of the most determined and tenacious people I have ever heard of, you are an inspiration to us all !

@VetTails

3 жыл бұрын

Aw thanks so much Ian, yeh its been a hard slog but we are very close!

Awesome explanation lady 👍🏻

@VetTails

3 жыл бұрын

Thank you! 😃

@richardkaye2228

3 жыл бұрын

Vet Tails' Sailing Chuffed I’m just replacing mine this week with the trudesign it’s really a no brainer I think

Amazing! Thanks!!

@VetTails

3 жыл бұрын

Thank you too!

Thanks, nicely explained

@VetTails

3 жыл бұрын

Glad it was helpful!

Thanks!

@VetTails

Жыл бұрын

thank you!

Good explanation of galvanic corrosion

@VetTails

7 ай бұрын

Thanks, its hard to wrap my head around!

Your intelligence seems to be endless and its amazing to see - Amazing :)

@VetTails

3 жыл бұрын

Haha their is an end to it believe me ;) Thank you!

@Heshhion

3 жыл бұрын

@@VetTails Doubt it.. You're a fellow Aussie. Bloody legend ;)

I redid a little aluminum row boat, and have been around boats for 30 years. Excellent job there, you taught me more than I knew. The pictures were good too nice work. Now I know why the brass oarlocks ruined the gunwales.

@VetTails

3 жыл бұрын

Oh thats awesome to hear, thank you!

I have been looking for heavy gauge aluminum boats here in Hawaii and now I suspect I know why there are very few of them. Proper building based on the material preservation when working with finite elements and their electrical properties. It would be a solid and minimal effort to maintain if done correctly. Very insightful info. Mahalo for your time and insight.

@johnnyhunter4345

Жыл бұрын

Believe their are electronic monitors and preservers of aluminum available in addition to the process you are using in this video as well....aluminum boats hold their value well if properly protected. I have had two aluminum boats with issues but kept more than required and fresh anodes in place. I chose not to remove the oxide or paint above the waterline kept an electron barrier between dissimilar metals on the boat as well.

Parabéns linda doutora e mecânica muito guerreira gosto muito de você e este maraviloso comandante

Very nicely done! That was one of the best explanations i have ever heard. I am glad you mentioned stray current in marinas. Electrocution due to stray current at marinas is the biggest reason I don't ever swim at a marina (even more dangerous in bodies of fresh water). So glad you are putting good zincs on chuffed. She will thank you!

@VetTails

3 жыл бұрын

Oh yeh that is a scary thought! Thanks Pat and Mike x

@johnnyhunter4345

Жыл бұрын

Marina close to ours, mother and daughter were electrocuted from their own aluminum boat because father wired the ground improperly...water around boat was charged when they jumped into water. Almost all marinas have stray electrons in the water. Never swim in marina water.

To be honest, my brain still cannot comprehend many concepts discussed here, but I thank you enormously for making it better... and btw, yay surfing fishing and sailing. May it all come to you soon. (Yay all the dogs in the world who need love and care)

@VetTails

3 жыл бұрын

Thanks so much, yes it’s super confusing! So excited to head up there and help out

Thank you for your video and I will be watching to learn more things to know with the corrosion of aluminium lol me I just get cob webs lol

In many ways it is still somewhat of a Dark Art. No matter what you do, there will always be issues. People can be dogmatic about the right thing to do, but reality and theory don't always jibe. You have taken a thorough approach and done all the right things, great job Sheddy. You always do what's best for Chuffed.

@VetTails

3 жыл бұрын

Yes so very true Marty - its like reading up about whether to ground an aluminium boats electrical system in anyway... it seems theories go both ways, personally I will make sure electrcity never sees this hull again (as best I can!)

As usual, Sheddy, the episode was tops !!! When you pulled the stainless rail away from the aluminum, I thought for sure you were going to mention how to place a non-metal disc in-between metal to metal contact to reduce galvanic corrosion. Totally agree (on any kind of boat) anodes are our friend. ✨💕✨✌️✨⛵️⚓️🏝👣👙✨

@VetTails

3 жыл бұрын

Ah yeh, we did actually do that haha! Shouldve mentioned it ;) Anodes are my best friends now for sure

@peetky8645

3 жыл бұрын

@@VetTails could the boat have been built with aluminum rails instead of ss?

I stumbled upon this video while trying to figure out if I could use my boats aluminum hull as the grounding path for its electrical system. Thank you for answering it! If im interpreting this right, I should not do that.

VTSC, one aspect of the tank bottoms corrosion is water bottoms (condensate or fuel impurities) can become acidic or shift their neutral ph to the acid side due to DE-aeration when left under fuel in a bare aluminum tank. The aluminum will 'remove'/strip or attract the oxygen to the aluminum oxide and the ph shift happens. After the water bottoms become acidic enough they will start crevice cell corrosion sites as you show in the video. For this reason water bottoms sumps coupled with regular pump-outs are part of well designed, built & maintained marine tanks.

Just stumbled across you,looking for stuff on ally boats.Great explanation ,what type of boat do you have, looking forward to having a look through your videos, @lockeddowninmelbourne. Thank you

pretty much the same with steel narrow boats on the canals good luck and keep up the good work

@VetTails

3 жыл бұрын

Thanks, will do!

Lot,s of good information

@VetTails

3 жыл бұрын

Glad you liked it, thanks!

Thanks, we learn more before we chose the right boat.

When you do your research... go chuffed!

Thank you so much for this extremely informative video, specially for the zinc phosphate tip! P.S. Love the pineapple shirt! ;-)

@VetTails

9 ай бұрын

You're so welcome! The shirt has since disintegrated... I kept one sleeve as a rag for the memories haha

First time seeing your channel. You know, you should do a restoration show for boats. Not just one, I'm talking hundreds before it's over, maybe 5 to10 a year, different boatyards, shipwrights, architects etc. Obviously would need multiple projects at once over the course of the year and an editor who can sort through thousands of hours of footage but, you know your stuff! I'd watch every season. Set up a crowd fund see how it goes. Oh and subed!

@VetTails

2 жыл бұрын

Haha, we are hoping to do restoration shows for doggies and other animals instead :)

@DeadLegendMusic

2 жыл бұрын

@@VetTails Too bad you could've beat the boys to the punch. Hasn't been a show like that anywhere and there are not a lot of girls with that kind of nautical knowledge in the world, you'd stand out a lot more than any guy or any girl doing the typical cute stuff if you did. Girl power is all the rage right now, you should take advantage. Hope you’ll think about it. If not good luck with your new project. Hmmm... Another Cutie doggy show? Or, become the Queen Mother of all yachting refits, striking a blow for all woman kind! lol! Seriously though good luck either way.

Having spent 30 years trying to eliminate electrolysis on my steel yacht I know it very difficult to avoid completely. Fortunately the damage was small enough to keep on top of. Some of the things I found to watch for were anodes with to high a lead content to work properly, stainless to mild steel contact, an alloy heat exchanger that has a direct contact to the sea via the raw water system.

@VetTails

3 жыл бұрын

Yes it is a the battle of metal boat owers!

@johnnyhunter4345

Жыл бұрын

I tell folks to repaint inside and outside on a regular schedule...steel boats will rust more inside of boat in unseen and hard to reach places quicker than outside the boat.

Great science lesson! I agree the internet is wonderful ....but have to seek a reputable source. So glad that you look healthy & happy 🙂👌 All's well in New York. Our infection & hospitalization rates are very low. Schools are opening in a couple weeks. Some with modified classroom venues ...most will be hybrid or online. As good as it can be in a pandemic. Stay safe and well 😷✌️🇺🇸

@VetTails

3 жыл бұрын

So glad to hear things are going well, and 'the new normal' is coming gently. I hope we use this time to restructure some of the ways things were that maybe were not working for everybody equally! Thanks Christine stay chuffed and stay well too!

@christinestange4813

3 жыл бұрын

@@VetTails Me too Doctor!

Good knowldge

You should replace the aluminium water tank with plastic or stainless steel tanks. Aluminum is suspected of causing cancer and dementia when it is ingested or used in cosmetic products. If you use stainless steel, then make sure that the stainless steel is electricially isolated from the aluminium hull.

@dawidbm531

Жыл бұрын

there are a few threads on some sailers forums on that. New(er) research denies that claim.

@foxtrotalphaone

10 ай бұрын

That's true of SCUBA tanks because over many pressure cycles the aluminum fatigues and aluminum oxide dust gets into the air. I don't think this is a problem for fresh water tanks.

@philv3941

8 ай бұрын

"Supposed to" and never proved. Aluminium is the most abundant metal on earth, the 3rd most present element right after oxygen and silicium ( you can fact-chzck this) . There is AL everywhere, in the water you drink, in your food.

@OpenGL4ever

8 ай бұрын

@@philv3941 And it's an element, your body doesn't need in elementary form. It's not like iron, iron is a biological messenger.

Always use an isolation device when using marina power--as well as the other things you said.

@MikeBanks2003

3 жыл бұрын

@Will Swift Either an isolating transformer or a set of bridging capacitors. The idea is to isolate the vessel from the marina's power earthing system, thereby preventing your boat becoming the best earth for stray current and phase mis-match the entire marina power system has--with alarming rates of corrosion as a result. On my vessel, which was not aluminium--I used an isolating transformer. It was heavy. There are more modern devices available.

Thanks for the video. Interesting and very useful. Do you leave unpainted/untreated the contact points between the anodes and the hull (metal to metal contact)? Good luck in your adventures.

@VetTails

3 жыл бұрын

yeh, the screws themselves conduct between the hull and the anode :)

Dr Sheddy and assistants heroically save another ailing patient - SV Chuffed!

@VetTails

3 жыл бұрын

haha yes! shes been the longest case ever!

Great video. I sort of knew the science but not how it applied to aluminium boats. How long does it take for this type and scale of corrosion to occur? Is there any rule of thumb? Thanks

So random I came across your channel. Im polishing an aluminium V8 chev inlet manifold and searching for tips and tricks. Im wondering now after seeing your video, if I attach an anode would it help inhibit corrosion in an engine? Given its an engine its does use high tension and low voltage, plus has water running through it for cooling. Surely that has to attribute to corrosion in the block and head. Im guessing if an anode could help an engine, someone would of already done it. Man great project and you really have a presence about you on camera. Im in Radelaide... So Go Oz content.

You had me at "Al yooo min e yumm."

@VetTails

4 ай бұрын

haha the aussie accent!

great explanation, thanks! The thing I've never understood is how to properly ground your electrical system in a metal boat. Be nice if you could cover that (or do you need to bring in your dad for a guest lecture?).

@Inkling777

3 жыл бұрын

Agreed! Discuss an electrical ground for corrosion, one for the radio, and, particularly important, what to do about lightning. Also maybe one about how you traced down that stray current.

@svphoenixandme776

3 жыл бұрын

Simple answer... Negative buss. The hull of a metal boat should be utterly isolated from any and all on board electrical systems. However, this doesn't remove the need to install chassis grounds to the hull (AC only). These grounds should Never conduct Any current. They are only there to ensure a dead short in the event of an internal failure within an AC consumer. Without these, if an internal failure occured allowing the chassis to become energized, the next person to touch the unit will become the path to ground. Hope that helps. But if you are at all uncertain about power on your boat, hire a well recommended and experienced professional.

@grancito2

3 жыл бұрын

Negative grounded steel boats and hull isolated steel and aluminium boats is normal. Mast and stays are connected through the boat to the water, so that is the best lightning protection there is.

@VetTails

3 жыл бұрын

Generally a 'floating' DC electrical system is used on aluminium boats, so the entire battery/wiring/engine unit is completely isolated from the hull. This is what Chuffed has, we have no shore power so there is no AC current onboard (well there is an inverter but yeh nothing running through the boat). It is a suuuuuper confusing topic with a lot of theories going both ways, so not sure I would feel as good about telling people how to do it incase its the wrong info - dad may be a better bet!

in a sailing boat, the simple fact of eletrostatic charges bild up in the mast or sails can generate enogth differential to promote galvanic or eletroctrolitic corosion ^^ but nice complete explenation BTW, nice video

@VetTails

3 жыл бұрын

Great point!

Great, hope it floats .

This is good, but like you said there's a lot of bad info and I think a lot of that comes from the telephone effect. The further in the chain of correspondence the listener is from someone who actually studies chemistry, the more chance the info is dumbed down at best and wrong at worst.

One of the most interesting tests , at least to nerdy me as I like electricity, was the one with a silver ingot, or at a minimum a well plated silver spoon, and a meter. Something like throwing the spoon into the salt water and measuring the voltage , with the black meter lead hooked to the boat, and the red meter lead on a wire connected to the silver. You get a voltage reading that indicates how well your "Zincs" are working. Apparently there is a sweet spot voltage which means you have the optimum amount of zincs for your vessel, its possible to have too much or too little. Its a topic which is hard to find details, especially for the more rare aluminum vessels, , kind of a scientific pursuit for a group of us . My cruisers help playlist has about 10 videos on galvanic corrosion topics. Yes, the systems you need when connected to shore power get a little complex and expensive. That said, there was a site called JetDock where they mentioned 1.3 volts as that special voltage and not going over that. Would need to ask them more about that. Also, with the Zinc sure to disappear, its essential that the hardware attaching them doesn't leak after the Zincs have disappeared.

@VetTails

3 жыл бұрын

Yes would like to try that, Will and I went around to each wire and the hull measuring any conductiveness to find stray leaks etc which was interesting

@rideh

2 жыл бұрын

@@VetTails can you describe that process a bit more?

Once again so sorry you had to go through all that. Dated a lady with a 64 mustang 1st year. Boy did she use the charm on me 6 months later it was a good car.

@VetTails

3 жыл бұрын

Worth it in the end!

@selrahc2061

3 жыл бұрын

@@VetTails True

This video is good ad for Fiberglass boats.

That was very interesting ! Thank you! Is that boat an Alubat?

@VetTails

3 жыл бұрын

Its a Gamelin Madeira, not many made :) Built in Gamelin shipyards of France

What about a soft wire brush on the end of drills to clean off the corrosion in the pitting in the boat ????

Hi All! this is the first time that I watching your video and I found it great! I've been sailing year with Ovni (aluminium French boats) and I've never had corrosion (thanks to the anodes). Just a question: what does Vet'S tail mean? are you a Vet too?

@VetTails

3 жыл бұрын

Yeh I am a veterinarian

Is glass bead/walnut shell/sand abrasive blasting an option for removing the aluminum oxide?

@VetTails

8 ай бұрын

Yes, very good option, but need to paint quickly or give a light sand as you paint because al oxide forms really quickly (minutes). Wish we had that option -took a long time by tool/hand!

What about paint it down with old engine oil to see if the oil might put any strengthener back into the aluminium

the through hull fittings you showed as an example are not copper, they are bronze/ Brass, mix

Hi, love the vids! I'm about to repaint my 4.9m Allycraft Centre Console. What is the best method for removing old paint from aluminium? Paint stripper? Sanding? Grinding? Wire brush on angle grinder?

@VetTails

Жыл бұрын

We did a combo - the important thing with paint stripper is it MUST be washed off really well, and we didn't leave it on as long a it said (it is corrosive to alu). We applied paint stripper (car) to small area (0.5mx0.5m) then scraped, washed it clean, and did that to the whole boat. Then we sanded using a black poly strip wheel - normal sanding seemed like it did nothing!

@rodondo7946

Жыл бұрын

@@VetTails Thank you! Appreciate it...

I learned about electrolytic action back in college in the early 80's not bringing steel in contact with aluminium,your explanation brought that all back.Very well explained thanks.

Thank you for explaining a confusion topic! So how many zinc anodes were installed and how long do you think they'll last?

@VetTails

3 жыл бұрын

we have 2 on the hull and one on each the prop, rudder and keel (since they are somehwat isolated). No idea in terms of how long theyll last since theyre my first zincs on this boat but hopefully a year!

@leojoseph6385

3 жыл бұрын

@@VetTails Understood, Thanks for the reply! Consider having spares for the next time the boat is on the hard. It will save you time and grief.

i would have used interprotect 2000e and use aluminum anodes not zinc. i would also get an electroguard 630afm kit for $1500 for iccm.