TIG Welding An Aluminum Fuel Tank ⛽️ EXTREMELY DANGEROUS WELD
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- เผยแพร่เมื่อ 1 ต.ค. 2024
- I had a buddy that asked if I knew how to weld this thing back together.... I couldn't resist a challenge and decided to take on the welding project! I also thought it would be cool to bring you all along and show you how I welded this thing back together.
Stay Safe!
-Steve
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Purge with argon to eliminate oxygen in the vessel.
Great answer but the question is, how much argon and time will it take to purge a 125 gallon tank?
Some of these TH-cam welders make me laugh
I 2nd that, argon purge is the safest way I’ve done it many times. You can check the purge with an oxygen meter or if you can’t get one use a lighter by the vent. If you can’t light the lighter from a few inches away your purged. If you don’t know how to properly setup a purge you probably shouldn’t be attempting this anyway. 👍🏻
@@darmstrong9334 its just math, not difficult. This guys making out like he is some kinda badass, all he is doing is welding a fuckin tank, it aint rocket science. shit vid.
PURGE THE TANK ! I cringed when you took the torch to that without purging. You have to eliminate the air in the tank to prevent explosion. By not even mentioning purging the tank you are showing people they should weld tanks in a very unsafe way.
my late father was a welding engineer, he used to certify the welder's for their coding's, he was also certified to weld/repair nuclear reactor's on Royal Navy submarine's, he had a special stamp in his passport which related to the official secrets act, yes i'm bragging about him but he could weld anything, still miss him,
Dads are the hardest boss ever to work for but on the hand they are the best brother nothing wrong with bragging about dad but I just find it a little hard some times fill his shoes and picking the ball up and running with it cheers to all the dads dead or alive thank you God speed
I'm impressed mate 👍🇬🇧
the company I work on over here in the states does the same thing. ive got a few hot work certs but always working towards more.
Old school rule for welding fuel tanks is soap and water rinse the tank 20 times then... fill the tank full of water so there is no air pocket. If in doubt, rinse the tank 30 times. You can laugh if you want but this rule was taught to me in 1982 by my welding instructor.
Or you can just run your car exhaust into it for a good half hour or so after rinsing it once...
You don't need to fill the gas tank with water and soap and 20 time rinse. Just empty it as much as you can to another container and with all filler and breathing and fuel pump holes open, put it outside for couple of days, when inside completely dry you can weld it. If nothing inside how can explode ? Only Air can explode?
Run the exhaust of an old gas powered car into the empty tank, let it sweat for an hr or 2. No more boom boom. An old lincoln pipeliner 250 works good. Flat top, hot exhaust.
what if the old gas powered car is running super rich?
@@repurposedperformance5762 Don't matter,the hydro carbons will help expell oxygen and vapours ,Remember its the vapours that ignite,you can drop a lit cigar in a motorcycle gas tank and it'll go out every time,you hold a naked flame over the tank and the fumes will light up instantly
@@ianmangham4570 so tons of raw gasoline vapors wont ignite when you spark a welder on the hole the fuel vapors are exiting...... I cant wrap my head around that. I see if it was a old perfectly running car but if its expelling raw fuel out the exhaust I dont know how that "doesnt matter"
@@repurposedperformance5762 When have you ever seen a car spilling fuel out the exhaust? /you may get a few drips on start up but when the motors warm it's not gonna spew fuel out the exhaust,you got running rich/fire hose on the mind son 😂
@@ianmangham4570 A car with a dead hole will indeed dump raw fuel put of the tail pipe. Dont believe me? Go watch the episode where Steve builds the Gasser car "Eye Candy". A car that is flooded or has a fouled plug will run raw liquid fuel right out the tail pipe "Son".
I have always refused to do fuel tanks. Unless the customer is willing to stand beside me while I weld it. Gets me out of it every time.
Everything thats worth doing well needs prep or its just gonna turn out crap, Never have enough practice welding to get skilled at it, but i am a master of making spy holes in metal lol
When I went to school for tig welding, we would set Argon and Helium mix for the thicker aluminum, it definitely helps with the penetration and flow. Also one of the craziest thing(s) I welded were actually top secret, I did a background check and signed a NDA when I first was hired through the company, all I was told the pieces were for a particular aircraft.
I'll take shit that didn't happen for $200
Thank the brass for high lvl clearance jobs for private contractors!! makin the big bucks always enjoyed it
@@BiggusDickus2 it's very likely. Welded on and worked on several classified jobs. Not all that exciting, unless you are a science buff too and can piece together what they are really doing..
I've stick welded 500 gallon fuel tanks on railcars a few times. One of the scariest things I have ever welded!
I've been welding for almost 3 years, I've done a couple fuel tanks and one fuel/hydraulic tank and it's best to purge with argon. After you are done welding it up you can close the cap and plug some of the holes with fittings if you have them or stuff a wet rag in there and stick a air hole in there with a air gun on the end with a wet rag wrapped around it. Put some soapy water in a spray bottle and pump some air in the tank and spray the weld with the soapy water and look for bubbles, maybe get someone to help you look for bubbles if you are at the other end. Hope this helps 👍👍
Thanks for the tip Josh. Appreciate your comment!
Good advice!
Have welded fuel tanks in the past,blood pressure always goes up. Still have to get tig practice in.
Steel tanks, mig and a skim of solder after. Still, no matter how careful you are, you cant be too careful!
Thanks for teaching me how to weld a fuel tank. You're responsible for me now. 💥
👌
My dad has a 6200 pro mod puller truck , we do the truck pulls west coast, 850 ci 3000 hpw, 2.5 tin axle 4x4 , I welded up fuel tank that's on the front of the puller 25 years old , I prep it , cleaned , welded up all the fittings for the lines , here is a true store ok , as growing up i was told i would not be able to work or drive do to my disabilitys lol , I drive really will , I work for Pacific seafood cannery as a machine operator, for the fish that goes to all the Walmarts, freddy's, Safeway all the box stores , I have no clue how to weld , but I was watching TH-cam channel, I said I'll try it , my dad has his own private shop , he already had the welders so I practice 4 times a day on scrap till I got it , watching from seaside oregon
??? Yet an explosion can only occur in sealed containment...just as gun powder doesn't explode in open air. Is there no way to keep the cap off or what am I missing here?
Rapid expansion can overwelm the opening. It can still expload eaven with say cap off and filler neck open.
Your bad ass and honest! Thanks for the great video the craziest thing that I've welded was a cast iron engine block with nickel rod when the motor was still in my pull truck
How'd it go??
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Same here gas tank. But I flush them out and dry them for awhile before the weld. Never attempted aluminum before. I want to start tig welding.
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look australia new airport , you like Bracket Helipad assembly in office " Kanada
Welding aluminum diesel tanks is totally safe as long you pressure wash with hot water until the tank is hot to the touch have personally welded over 100 of them straps all the way around, bungs, baffles, and end caps. Make sure to leave every port open possible and no worries. Welding in a hog composter putting in AR liners is way worse or welding in a cheese pasteurizer tank where a torch won't even light because to little oxygen is way worse. That's my experience
You know what? why are there people who always dislike Steve’s videos if you don’t like them don’t even put a thumbs down just move along for fuck sake.steve makes absolutely beautiful rat rods.
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I live in a small Christian town, I got bored and made a full size, fully functional guillotine, I left it in my backyard for a couple years lol, then I sold it on craigslist.
Bruh this isn't dangerous at all. I've banded hundreds of aluminum diesel tanks. As long as you vent it there's literally 0 risk
I just did a jet boat SS tank. Didn't even clean it lol. I didn't smell any gas and it didn't blow up when I put a lighter in the fill hole but that was MUCH smaller than your tank lol
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40 years ago I worked for a company that hauled gasoline I. A 13400 trailer it had to be welded several times they would run steam into it for hours before they were allowed to weld on it
Vent/purge the fuel tank with argon! Not so dangerous, hell even nitrogen to help out the cost on your wallet!
Hell dont give these tips or inexperienced people will asphyxiate themselves
I used to weld train cars a few years back, mostly scrap cars or car haulers. But I had to weld a fuel tanker one day and I literally was praying to god I wasn’t going to die! Lmao worst part was it was a crack on the bottom and I had to mig weld it all!
I welded reproduction oil coolers for 50 Chevys where I work with a tig and everything had to be perfectly clean where I welded looked like a mirror when I was done that's how I knew it was a good weld
I welded fuel tanks and propane tanks but they were purged with nitrogen to displace all the oxygen.
Put the tanck first in a mufler of your truck its is gasoline motor its better.Tje monoxid eliminsted de gases in the thanck.
$180 for a T bottle of argon in 2023... amazing what 3 years does
look market in Brazil area , so much camp black Stone in Bangladesh
I would purge the tank for a while using C02 or the exhaust from a portable welding rig.🤔
And yes cleaning is up most important when working with aluminum.
The only time I was close to anyone welding a fuel tank was mid 70s a Ford gran torino had leaking tank my boss told me fix it so with the other welder we started to clean it but up come boss McNeil with the torch to do it his way I took off at fast walk that some point turn into high speed sprint the tank made what sounded like a gasp and luckily headed for the sky well bold McNeil took the rest of that day off my guess was he went home to change his under pants
Boy Man , you like steel size 3,5 or 4 mm ? new tank good jet ski Oke
We weld these tanks almost daily, we always make sure to empty out the tank before we weld, even if it takes longer.
Hey guys I like the video...
But I would like to give you an advise... If you want to weld any kind of fuel tanks make sure that it doesn't have oxigen in it , because for explosion you need oxigen!!! So hok exost pipe from your car or truck and lead it runs in your fuel tank as long as don't finish welding
I just welded a fuel tank.........on a go kart wth!, I cleaned the tank tested it with a torch then it was fine,
Purge it, and have an atmosphere tester, it will tell you when the air is no longer combustible. Not that dangerous if you do it correctly
Three ingredients for fire= heat fuel and air (oxygen) . No air, no fire! If the tank is FULL of fuel , there's no air ! If the tank is half full of fuel, the other half of the space inside has air. That's where the danger is. If the tank has no fuel, there's air= DANGEROUS! To fill the tank with water first is probably the best safety precaution to use when welding a fuel tank
what kind of atmosphere tester should i look for. o2?
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For those that have NOT done a trade in welding please note the following:- This video refers only to Diesel Tanks; Petrol/Gas tanks present a different and much more dangerous problem, if there are any folds in a tank, ie. the ends are turned around and the outside edges welded, fuel can accumulate in the folds and even after years of being empty when the folded seam is welded the liquid secretes out and mixes with the Air/21% oxygen and can/has caused fatal consequences. After thoroughly washing the tank it is recommended that Co2 be used to flush out and replace the air in the container keeping a flow of Co2 the whole time till all welding is finished, ('This also applies to any cutting of a tank because the tools motor brushes and/or grinding/impacting can cause a spark'), the use of Co2 does not replace thorough washing as described in this video; Note! even after thorough washing and then 'filling' with water in a petrol/gas tank, this will not guarantee your safety, only a Qualified Tradesman should undertake this kind of work, because we have seen all of the videos showing the gory end results when people have not followed instructions to the letter with this kind of welding. I know its a video about a diesel tank but some clown will watch this and wont recognise the differences and end their life.
Thanks Russell, I need to post this alongside the video. Appreciate your comment!
Great video and can tell what your saying comes from knowledge and experience, 100% agree any type of fuel tank is dangerous to weld/work on and prep n saftey is biggest thing.
As a novice i have done tanks i shouldn't but then again i play with homemade rocket propulsion and few other things i shouldn't so i get how the invisible/unknown is most dangerous.... I like to say consider the fuel in the tank like a bag a flour its safer when its liquid/soild form but as a vapour its highly explosive.
So don't be stupid
Most challenging weld I've try has been DC TIG in E6 colbolt and chrome hard faceing rod intened for hard faceing wood working tools. Job was 1st gear drive dog for a 1919 humber this the recommended repair by the humber register as no one make replica gear sharfs. its since gone back in the car and runs like new. Owner tell me he's got lernt to drive it all over again because its taken the slack out of it so much. But I did blue grind and stone it back the traditional way just the way they did in 1919.
Cool!
I cut a 1000 gallon propane tank in half to build a big ass wood stove. I filled it with water and cut the tank in half with it still full of water.
Hmmm We doit all the time n never had a blow up
new zeland no like adventure algeria , like in hawaii or Brazil
I've welded numerous diesel fuel tanks over the yrs that I simply just completely drained and then prepared the surface and welded. I've also purged with pure Argon as well which is the smarter of the two. I've done aluminum and steel tanks and luckily my father was a professional welder for yrs back in the day making hotrods and race cars for himself and many others.
That's awesome! Thanks for sharing!
I repair diesel tanks almost every other day just take the filler cap off so it doesn’t build pressure and fill with some water and you’ll be good 👍 great video!!
I weld aluminum diesel and hydraulic tanks regularly and all I ever do is fill them with water then dump them out, Leave the caps off and weld away!
Yep it takes a hell of a lot to get the “oil” hot enough. All it does is catch on fire when it gets hot enough if the cap is open.
It’s better to clean the inside out, that way you don’t leave a bunch of burnt garbage in the tank that can pull into the weld pool
JustKeepingItReal got a used 100 gal diesel tank for my pickup. Previous owner patched it with some unknown filler. It’s leaking, so I was told to steam clean it out, fill with water, then weld. Are you saying I wouldn’t need to fill with water as long as I remove the fill cap and pump?
I weld holes on big oil filled transformers . I always purged it with nitrogene to flush the oxigene.and during the repair I let the nitrogene enter and exit to another access. So like that its impossible to explose if the oil vapors are not fed with oxigene
I'm not a professional welder but worked in the truck and transport industry for years. Ended up having to do some cutting and welding on a fuel truck. I was very nervous but like you said the tank was full so alot less chance if anything happening. Just glad I didnt have any vapors around. Definitely had the shop doors open to get the wind go through the shop
I been welding tanks for years just fire purge it in a safe way
I have found if I need to weld fuel tank or something that’s had fuel in it. If you light the vapors on fire before you weld then wash it then light it again if possible. I’m usally ok.
I patched a gas tank with soap to stop that leak then got everything as spotless as I could and put some sealer on that keeping it to a minimum and once I was sure no gas could come through made a patch that looked some what better over all and then when no leaks, removed the gas that will solid up while there is gas it holds but gas gets below hole and the soap falls out. I was counting on marine tec goober to hold fair.. I filled tank with exhaust pipe running in it and gas weld (braze) this tank as it was on the rig and just about no way to save if pulled. It was hoaky way but most I would chance.. I just don't like gasoline. The bigger patch covered a lot of real estate but it also covered the ugly I didn't want to claim as I was just buying insurance and it was also all I had to work with, could I got it to shop my way would kinda mirror yours and no goober either... even a damn poor explanation but I ain't feeling so sharp Steve
I make a lot of money welding diesel tanks. I’m the only one in my area that does it. I always open the cap take out all the fittings and run a torch over the holes to make sure it doesn’t flash on me. Prep is everything on aluminum. I changed $150.00 as a minimum. Price goes up from there.
Or pontoons!!! They blow up as well!!
I have (against most recommendations) fixed leaking slip-tanks around the farm just fill em with water and weld at the upper most rotation, tried welding the cracks but usually end up patching, but i will drill out the end of the crack with a 1/8th or 3/16th bit to halt the crack. And yeah yer spot on Tigging is an art-form (especially ally)
I was a bridge welder back in the 80s (before all the safety wires lol) the decking frames were galvanized thin angle.welded them so they could screw the decking.it wasn't really crazy other than the heights but u have 20 workers counting on u that your welds on that thin ass galvanized metal didn't break.lots of lives depend on you.i was 18.big responsibility. Carrying a box of rods on a 16 inch beam while unrolling the leads of your shoulder was the scariest part tho.
I've built racecars and experimental aircraft parts over the years, welded Titanium, aluminum, and magnesium. Prep is the BIGGEST thing and most important, clean clean clean for all disciplines of welding is key, and yeah you gotta do the test runs and set up runs on alloys, magnesium likes to catch on fire if heated to much when welding it, that happens and you are screwed royally with no way to extinguish it once it starts,, Fun stuff!!!
Common welding knowledge is never weld/heat an empty pressure vessel and displace oxygen with an insert gas...in this case, argon.
Exactly, when it comes to having a job to fix something for someone, they dont realize how much prep work there is to getting started to simply weld something.
I run a hose from the exhaust pipe on the forklift while its running to the fill on the tank keeps the oxygen out never had any issues old timer showed me this trick
welded a hole shut on a mack dump truck oil pan ,i was fresh out of the job corps welding program lol boss needed that truck right away,no time to pullthe pan,got her to stop leaking ,then pulled the pan and fixed the pan right first chance we got....
That aluminum is pretty wild I've been towed like the heat can move through that aluminum and be hot from the farthest place you are welding it takes a badass to fuck with that shitt and extremely dangerous like you said bro I've seen dudes that scrap yards and shit torching gas tanks Jeff crazyshit you're a badass brother you know how to get shit done man like you said brother it takes some good patience and skills hey brother I seen a pretty cool setup for a ground a dude use the magnet I thought that was pretty cool have a good one brother stay safe man always good seeing you on here 👍🏻👍🏻👍🏻👍🏻🇺🇸🇺🇸💯💯👊🏻👊🏻👊🏻
Hot taping live high pressure air lines is pretty sketchy and the first time I ever repair a 1” fuel line pressured up had me sweating bullets lol but it was explained to me when things are right you don’t have to worry as much
Damn straight
I never was a great welder I fucked with it in school and outside of school on a farm I worked on growing upand the guy had two sons that were doing their own thing and he got where his eyesight wasn't the best and he would have a guy come out and weld his equipment I said let me give it a shot man I saved him quite a bit of money and it was always fun I got my eyes burnt real bad one time it seems like when the sun went down it was the worst The mask I was using wasn't strong enough I'll never forget that bro that's for sure 💯🇺🇸👍🏻👍🏻👍🏻👍🏻👊🏻👊🏻
I'm industrial maintenance guy now. Started out in chassis shop tig welding all types cages.
Hanging upside down with another guy working the pedal is interesting to an watch.
Now I weld most anything on a machine combo of stick,mig,and tig.
I have welded fuel tanks but usually after they are cleaned an air out for couple days depending on weather an vapor condition.
I have welded on 5000 gallon air tank. Was sacred to death whole time on that one just running scenarios of where I would land if something went off.
We drained an had nitrogen blowing into tank while welding but always a what if in your mind.
An this was all done upside down 40ft up inside of a stamping press.
Love welding an fab work but dont get to do near as much as I used to.
That's why I love thsi channel for diversity of the projects an work.
still a green horn not even a year into my field experience, but the craziest thing I've had to weld was a rack in a shipping container to hold a compressor, the whole shipping container was filled with 55 gallon drums of hydraulic oil, diesel and fuel and spilt flammables. was super sketchy but I used a blanket and tried to cover the drums as best as I could lol
Only live once life is short getter done don’t worry about tomorrow live for today 🙏🏻🐺
I did a 20 ton dump truck u-joint, in the field. No parts available. Lasted all day, until we got new part. Thanks.
I have been told to fill it with water when you are welding one is that even possible or smart because it seems like it would be much more difficult and could lead to bad weld's what is your opinion on this whole concept?
I welded my son's motor bicycle gas tank but maid a bigger hole in it than anything cause those tanks are so thin but I only weld for a hobby 😁 cause I mainly do power line work
One time we were out off road and punched a hole in the oil pan. It was thin steel and very oily. We cleaned it up as best we could and used brake cleaner. We thought we had dried it out pretty good but there was still fumes in there. When we lit off, the fumes lit off and it spit a ball of fire out. Now we knew it was dried out! Ended up welding it shut and everything was good.
I figured it be cheaper and safer to fill tank up with water to weld. I've seen ppl using torches to cut flammable barrels and have it blow up on them
Weld on live lines 👍
You'd need an ITAR clearance before i tell you what the craziest thing ive welded! :)
O you dont fill it up with water or is that just a gas tank you fill up with water
Im not certified to do anything but there's pics of me welding before I turned 10 lol... I grew up in an old school trucking family, and in a truck shop....we have welded these for years. After I wash it down with acetone, then I purge the tank with a hose hooked to my pickup truck exhaust for 45 min....then I weld it up leaving hose in and pickup running...o% oxygen in tank, that means zero percent chance of explosions....trust me on this, it'll save your life!!!
I've welded up quite a few for the military..... I would grab a Humvee and hose in the exhaust for about 39 mins.... Then weld it up....never had problems...
Many years ago
I’m talking 1999 or 2000 I had a Fiat X1/9 and the fuel tank was leaking from the seam
so anyway long story short it was successfully welded but in order to do so the petrol tank was removed and completely drained and washed with degreaser and water and dried with compressed air
didn’t matter how much you washed it you could still always smell fuel
and just prior to starting to weld I you put about 5 kilos of dry ice pellets into the tank....!!!! On the advice of someone who had done it before themselves
we had no problems at all
the job was successful
expensive to pay someone but as a DIYer the only cost really use the dry ice and my time
I wouldn’t want to pay a welder to do that
On the other hand it would be pretty expensive to find a 1972 Fiat fuel tank even in the year 2000.... and even if you did it would be secondhand and it would have its own problems and require welding in a different spot....!!
But if you’re stuck I’m sure it wouldn’t matter if it was diesel or petrol dry ice puts a dampener on any explosions
So the company im with is wanting to weld aluminum fuel tanks gor boats but requires certification. Would you or anyone happen to know the specific certs required?
Hot taps on live gas lines at the refinery, or
Maybe Magnetic Steel on army tanks. I’m a union pipe fitter. Now couldn’t you just put a heavy nitrogen purge on a fuel tank so there is no Oxygen to burn
Put water inside it overnight and flush it out... keep all caps open when welding it then.
love how you spoke louder about argon and accessories lol must have been loud enough for ya son to hear haha
This is the best way...take an oxy-acc torch lite it...adjust to a good caberizing flame...then snuff out the flame...next jam it in the tank and purge it completely...then start welding!
Chrome plated copper water jacketed electrode Ram in a Vacuum Arc Remelt Furnace at a steel Mill. Yeah, pretty crazy. Lol. Welded surprisingly well though.
I repair, shorten and lengthen diesel tanks all the time. Never had and issue. I use brake cleaner to prep. Brake cleaner dissolves fuel and evaporates. I once modified 20+ 500 gallon propane tanks. I purged them with c02 before cutting.
Just fill it with water, i dont see whats the problem, i welded atleast 50-60 of fuel tanks, SS, aluminium even galvanised (which is the worst because of fumes) and never had any problems.
I wash tanks out then slowly displace the air with c02 .
Co2 is 1.5 times heavier so I have anything like a balance port on the bottom taped closed then the tank slowly forcing the air out ,replace to cap and weld it up .
Diesel is the dangerous one because of the wax that when hot turns into a ignitable gas , boom .
Gasoline tanks are pretty easy because after you drain and clean them there isn’t any wax to smoke and ignite .
Crazy thing was stick welding inside of a pump standing on the prop with water dripping all over me .
Yeah I got shocked a bit but got it fixed
I've welded 30+ deisel tanks, all have had fuel. Deisel does not explode, it is not volatile like gasoline. It burns like peanut oil, I've welded on the tanks half empty. Deisel needs extremely high pressure and heat to actually burn. Just stay away from volatile fuel tanks, those explode and kill
Yep ive done countless gas and diesel tanks over the years . Drain and flush with hot soapy water and then get a hose and run a car or trucks exhaust into it for 30 minutes or so . Done,,,,, ALso , I never fix a crack like that.... Hey its your thing and its worked for you but I always do a patch thats larger then the area . Helps cut down on the contamination and its 1 and done.....
just back purge with argon mix or hellium inside the tank, the use a rose bud to carborize the weld area, then burn that gash:)
Not a real scary thing I’ve welded but I welded the frames of a couple Draper combine headers that broke in the Montana rocks and they held up through most of the harvest run until we back up in Montana I have also brazed on my old 1949 combines gas tank I lit whatever vapors that were in there on fire and washed it with water a bunch of times
I am a welder I would have I would have welder with argon helium 7525 it weld so much better aluminum tig weld aluminum block my father-in-law's got semis I had to weld his aluminum tanks if you ever want to try that is the best gas to weld aluminum
Ive welded car hauler neck back to side rails on the side of I-75 welded... not so much stuck broke shit back together Not my best work most sketchy yes
Main steam valve bonnet that was leaking contaminated water on a nuclear reactor...kind of sketchy....water turned to steam (spraying me in the welding hood)while trying to seal up the bonnet
Steam and natural gas always made me nervous. Gate valves are notorious for not holding (if they aren't cycled every once in a while)
Used to weld alloy fuel tanks off trucks a fair bit, if you fill them to overflowing with water it pushes out all the vapor, you can then drain, burn out all the crud with a gas torch then weld em up with out leaving worry marks in your undies,
When I world on tanks now I wash them out or trisodium phosphate it takes Oil and petroleum days out so there’s no more flammable stuff inside and learned that when I was 14 trisodium phosphate is really good for cleaning inside and outside of tanks
Purge it with exhaust.... Common practice. This isn't an uncommon weld to do, dude. 🤣
Next time hand them a couple packages of JB Weld and tell em...WELDER UP! 🤣