We've been too busy with the refit to actually post many videos, so I've fallen a bit behind. If you're interested in what's actually happening in real time (spoiler: the boat is actually floating), check my Instagram or Facebook: instagram.com/alluringarctic facebook.com/alluringarctic I'll catch up and get back to the sailing videos asap ;)

Yuho, I really appreciate how you are taking the time to explain all the technical details for the viewers even when you got your hands more than full with projects. Always looking forward to your newest video, rergardless if sailing, skiing, exploring or being stuck on a boat in a winter storm. You channel is a gem.

Please post more often as your project is totally awesome and everytime I learn something new !

Confession: I have made fun of your dreads in the past, but you are a far better human being than I will ever be. Your knowledge, ingenuity and sense of adventure is to be lauded. I would donate a substantial sum if I could, but for now all I can do is say keep up the awesome work. I hope you and your lovely partner are sailing the seas in no time.

That was some scary wood butchery!

I have made a daytank in my boat about 10-12 years ago because I had serious problems with dirt in my main tank. I made it with the same options as you made it in your boat. But I have put the two filters in parallel with some ballvalves in between. This keeps only one filter in use at a time. When it is glogged by dirt I can easily switch over to the second filter and replace and clean the first filter. It can even be done with a running engine. Second of all I added some level switches in the daytank and I made some electric switching device with several automotive relais. This system automatically tops up the daytank as soon as the level is coming under a certain critical level. In case my filter should me glogged and the pump is not able to fill up this tank anymore, the level will drop under this critical level and an alarm is buzzing so I know my filter is glogged and I have to switch over to the other filter. At that moment I can run my engine for about 1,5 hours more before it will get no fuel anymore. This gives me plenty of time to switch over to the second, clean filter. Furthermore I have made a red and a green led on my dashboard so I can visually see that the pump is running (green led lights up). In case of an alarm the red light will light up. Meanwhile I know how long it takes the pump to top up the daytank again, so I allready get an indication of dirt in the filter when keeping an eye on the clock. On the switch board of the system I can choose for normal operation where the system runs as described. But I can also switch over to polishing mode in which the pumps keeps on running constantly. In this situation I always pump over my daytank and the daytank overflows in the main tank. And last but not least I have kept my old fuelsystem in place where I can still consume diesel straight away from my main tank. So if this daytank system would fail, which it never did sofar, I open/close some ball valves and continue without this whole daytank polishing system within a few minutes. This daytank system has been working for at least 10 years now and it never failed sofar. And since the fuel supply is more controlled than before I never even had a glogged filter anymore because i can see water and dirt collecting in the pre-filter. I wish you success with your project and waiting to see you sailing to Greenland.

A vacuum gauge or vacuum indicator between the filters and pump enables monitoring of the filter condition so you know when to change them. Arguably the day tank system eliminates the need for dual filters which are a must on a demand system (fuel goes from the main tank direct to the engine). Be careful about the total intake losses for the pump:- suction lift plus suction friction losses plus filter losses all reduce the absolute available intake pressure to the pump which if reduced excessively will lead to pump cavitation, if you know the required pump intake pressure then the vacuum gauge will enable that to be monitored as well. Good luck and regards Doug.

Very impressive, love the fact you don't mess around.

To be fair, before it was 15 y.o. diesel it was 100mln years old oil :) glad you are back with another video!

@4:57 - I can almost smell this video!

Happy sailing

I love the simplicity of this system. Well done!

nice to see you back, look forward to more content

Nice to see you back 😀

I'm happy to hear from you two and specifically about your fuelling system details. I feel bad for you working in such heat. On your way north I hope you can spend some time here in Canada. I like the two raccor filters in line, but I would suggest having them both feeding into a manifold with valves to isolate either so maintenance can be performed individually on either filter while under power and if possible a third filter to act a a revolving serviced standby. You are fortunate to have clean fuel, but in remote locations the resupply quality can't always be assured. I hope your main tank(s) have a small port for easy dipping and I believe there is some substance that goes on your district to indicate water sitting below your tank outlet. Maintainable suppliers for gas stations might be a source for that.

Nice to hear from you and good luck with the refit…❤

Great video. Thanks for all the details.

What a great system. Great to see a new video and I hope to see more now that the boat is afloat. Thanks for sharing

Soooo cool, finally a new video

Good to see you back I really like this technical video well done

Would be nice to see a custom tray under the filters to make filter changing or draining off water a cleaner operation

Thanks! Happy to see your time ashore has come to an end, and sailing and skiing are in the near future!

Enjoyed watching, you should be putting more out!

👍 thanks for the update

Thanks for taking the time to make a vid when you're so busy!

Love you channel , boat work and adventures ... living the dream

Good timing ,I'm planning on a day tank project and this was very helpful 👌

Great explanation of the system and your thought process behind it. I really hope the coming vids are of the same style and Detail! Well done!

Thank you very much for all the details and explanations about the fuel system. All the best!

Very interestinng Thanks for sharing your thoughts about building this tank system and explaining.

missed you guys! glad to see progress on the new boat, hopefully designing systems from scratch will lead to fewer surprises than on arktika. cheers

Glad you guy s are back online , I have missen you

Thanks for the video. Very interested in your refit. Doing great. Good video. Keep it up.

Glad you back been worried about you both I know you been really really busy but enjoying your video xx take care both of you xx

Love to see this detail. The details are the measure of a pro and of someone who's likely to survive any emergency or problem.😊

I agree with those who appreciate the technical explanations. I don't have a day tank on my boat, not do I have a polishing system; however, I'm now giving both a second/third look. Thanks!

I also have missed you but I am happy to see that you are safe and still laboring away. My very best too both of you and I can’t wait until you set sail.

Well done, miss your videos

Great to finally see Juho and Sohvi videos. The diesel system will be worth the money you spent. Looking forward to seeing you sailing.

Great explanation - thank you! 👍

Looks like a big project and great trip’ best of luck

nice explanation ! you are an expert !!

Would kindly recommend you fit a fuelgauge and manual fill cap on the inspection hatch. And manual fill/transfer pump also nice. There will be many occasions you cannot leave the helm for filling a tank, pitching in swell is risky, you need to be sure of maintaining a full tank at alltime with overflow.

nice to see some well thoughtout, self-developed solution. I think more people should think like you and try to repair stuff themselves :) good job!

Great job !

Wow! Your talents are wide and deep. Good job with explanation and filming. Your go to word "crap" sounds elegant some how! Sailing soon after months of hard work!

Great vid! I cannot wait for the NW passage video. It's going to be epic!

Yes, I enjoyed that. I have the same system on my boat but never really knew how it worked. & Thanks to you thing's are a clearer now. Keep up the good work 👍. SV Kiwi Lady Opua Bay of islands New Zealand 👍

I really love your engineering approach, it's really NASA grade emergency planning. Can't wait to see your beauty sailing!

Very cool solution!

Nice work.

Great to see a video again, was wondering if something had happened. My boat has two gravity and three main tanks.

nice work, the welding looks reaal good. Cheers

Great idea

🇨🇦 Well done my old friend! 🇨🇦 We don’t want to offend you both, but I have 2 more suggestions that we add up here in Northern Canada for the Oilfield Crew’s (-43c) We absolutely love your attention to the details in life, so make sure she stays on board with you ❤

Love the details, and on boats its all about redundancy. This is extra enjoyable for me, as I did a blue-water fishing boat to pleasure yacht conversion 20 years ago and it was a joy to build, but expensive. The amount of wasted space was amazing and fun to utilize / design for. Congrats and happy Sailing, look forward to coming along as a viewer.

That is really good. I’ve avoided that part of my boat improvements but have committed to buy a set of rancor filters, and already have a spare Marco gear pump. I don’t think I will go as far as a full day tank, perhaps it will be a 20 litre tank, but I will follow your model, thanks for the information.

Cool plan bro

It's good to see you floating again :)

i imagine youll put something like rubber etc between tank bottom and hull ? good system i like it.

Hello Please be aware of Galvanic reaction between the aluminum tank & any other dissimilar metals. Brass may cause the aluminum to corrode. I have had this issue on a machine & it was surprising how quickly it happened. Of course each case is unique. McMaster Carr is a good source for fittings & such.

I must clean the diesel in a boat I have just purchased and perhaps I will make up a portable tank cleaning kit with a pump to circulate the diesel and some in line filters to polish the fuel. I presume "polishing" means filtering the diesel through fine filters? Thanks for the excellent lesson, all very clear with easy to understand description of facts and systems.

a day tank really seems the way to go :D just need the space for it

Thank you for your videos, which I certainly enjoy watching. I've spent a lot of time working on various boats over the years, and in retrospect my lungs wish I had more consistently used a face mask when generating, or just around, dust of all types, including sawdust.

Good system, very wise addition for any bilge tanker. Was common in submarines and ships. Pony tank to many. For some it would be filled with starting mix before the lower grade fuel. Having a wooden boat with side tanks 3/4 of them above the injection pump the pony wasn’t required. Still need one for my heating. Enjoyed California’s plumbing issues I see, Washington was about as bad😅 Northern Passage sailors!

well thought out as usual. we love a bit of technical, and the occasional 'crappy' 🙂..

Excellent video and very nice work on the tank, appreciate your vids long time subscriber. Going to be a beautiful Vessel once you complete her. Take care. 😎👍

I have had i similar system in function for five years, works perfect. Beware of pumping flow to be within filter spec. Another issue, read Racor instructions. Filter housing to be filled to the brim. If not you will use approx half of the filter capasity. My daytank is about 140 litres and main holding 500 litres. The complete sirculation of main tank will be approx 6 hrs. Engine return diesel to daytank.

really clever!!

Thank you for showing us the day tank. Will you show us the sea water intake system? How only one through hole meets all the needs (engine, galley, toilet...etc.)? Thank you.

Nice setup. I don't like holes in the bottom of a diesel tank so I would have used top mounted pickup tubes to go to the engine and the heaters. I would also live without the drain and sight tube. That is just me though. My holding tank is set up the same way - no holes in the bottom of the tank. I also would not have put the two racors in series. I would have connected them in parallel with a select valve. That way if for some reason you plug a filter, you can switch over to the other and keep running while you change the plugged filter element. You didn't leave yourself a lot of space to changer filter elements.

Vera helpfull video!

I'm a heavy equipment mechanic for a living, boater for a hobby. I know the issue's of diesel systems. You've done a great job there... That's something I would do. Money well spent😁😁😁

Nicely Done, And the Cost Observation is valid, Just the Filters and Pump start the Cost/Cascade at a Good Rate... Mumble Marine and the parts cost accelerates as well. Later, at some remote location, when you get a load of dirty fuel it will surely all be worth it...Thanks for Sharing.

brilliant engineering. Great job.

Love it keep it up ❣️

Thank you very much. I find your day tank idea absolutely novel. It is so useful to have one onboard. The features you highlighted are very well thought out. I have one question though. Have you attached any grounding wire to it?

A lot of thought!

Nice design, especially having a narrow bottom, so any water / crap can collect

Also kerosene blend is good for cold weather operations

we had a day tank on the crab boat in alaska and i think they are required on all new radio tower diesel power plants

Brilliant brilliant video. Actually I would have liked even more details as a day tank is something I am contemplating for our boat. I now have a little You Tube channel just to share information and events with friends (sailing Laysan). BTW I had no idea you got a "new" boat. I will have to go back to your channel and channel and binge-watch what happened there!? lol.

so interesting!! Johu how did you learn all this? sometime tell us about your background! I really appreciate all the details you put about this day tank process!

Well done on getting your boat fixed up and floating, quite the accomplishment in such a short time. Are you wintering over in the northwest Americas, or headed straight to Alaska? Doing the inside passage route? Seattle is worth a visit if you have the time, likewise Vancouver. If you winter over there is some good skiing, and some interesting hiking/climbing. Mnt. Rainier is quite the experience...

Fancy system and no doubt useful in remote areas. It's an eyesore in the cabin though. Will you build a mahogany casing for it?

Great job Juho. In my system the filters are in parallel to increase flow rates for pollishing but am I missing something?

If you use teflon tape to seal the threads remember you cannot turn the thread back after tightening. If you turn the thread back you risk leakage.

stopping by in Seattle?

Curious about when you plan to go through the northwest passage? Winter in Alaska and then do the passage next year?

I am impressed beyond words! How do you know all this? Are you educated as an engineer?

If I had an aluminum boat I would get a small arc welder and some aluminum welding electrodes. There is a lot of mystery and myth around welding aluminum but it’s not that critical, I’m not a professional welder and none of my welds have ever failed.

This is match better 👌😃

Thanks for taking us along on this interesting upgrade. what brand and model of pump, filter and manual prime bulb did you use and where did you source them? are brass fittings with teflon tape standard for marine diesel installations? what diameter fuel hose did you use to ensure adequate flow for engine operation. would length of your run dictate a larger diameter hose for sufficient motor operation compared to a straight run from the main tank?

Impressive that diesel was okay! Wonder what additive they put into it!

Can you get the day tank Racor filters out of the housings? It looks a bit tight above them..

I realize this has been a challenging restoration. My impression from your earlier videos your intent was to be heading home by now. But now it seems too late to attempt to go home by way of the Northwest Passage. So are you extending your stay in the US? Or maybe go home via the Panama Canal instead? Very curious about your plans.

does arctic sailing require a diesel tank heating element to prevent gelling of fuel?

Thank you for the video. I’m wondering if you have any feedback on the nylon connector to the main fuel tank. How does it compare to a welded on fitting? I’m having some issues with leaking welds and after seeing your compression type fitting I was thinking of using that for all the other tanks instead of welding on tubes. Would love your thoughts.

normaly, if there is no bio stuff in the diesel you can still use it. i still run my diesel generator with diesel from the soviet union, so the diesel is 32 years plus. at the bottom of the tank is most times some fungus, so drain your tanks and only use the upper diesel.

"Why am I cutting this big hole in the boat?" Because you like holy boats? And it sounds like your filter system is going to be enough to turn diesel into holy water. 😄