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  • Can you fix this?

    Customer came the other day with a water pressure tank out of his RV. Said on the phone he was having trouble fixing a crack bt the heat element port. Well guess what? Steel mig wire on an aluminum tank just won't cut it.Nice mess already. Had to cut out about a 3" X 3" piece & patch over it. Pressure tested & was good to go. Never be surprised by what challenge the customer will give you. 1st. pic is as brought to us & 2nd.was after cutting out bad material & patching.
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    252 Miller Mig
    180 Synchrowave
    R - 45 Milling Machine
    Kingston 1100 Lathe
    Miller 2050 Plasma Cutter

  • #2
    Originally posted by metal-doctor View Post
    Steel mig wire on an aluminum tank just won't cut it.
    That is one of those, “Well I thought it would work”!
    Caution!
    These are "my" views based only on “my” experiences in “my” little bitty world.

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    • #3
      That's hilarious... Gotta give points for trying...

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      • #4
        Nice!

        Originally posted by metal-doctor View Post
        Customer came the other day with a water pressure tank out of his RV. Said on the phone he was having trouble fixing a crack bt the heat element port. Well guess what? Steel mig wire on an aluminum tank just won't cut it.Nice mess already. Had to cut out about a 3" X 3" piece & patch over it. Pressure tested & was good to go. Never be surprised by what challenge the customer will give you. 1st. pic is as brought to us & 2nd.was after cutting out bad material & patching.
        I don't do a whole lot of outside work for people, or claim to be a professional (or even good for that matter), but Jeez. This is probably another prime example of someone who watches shows like American Chopper etc etc etc and says - that looks easy, I can do that.
        I always have 2 prices for a job:

        (1) X amount of dollars if I do it.
        (2) 2X the dollars if you try it first.

        OK - confession time - I do watch shows like American Chopper

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        • #5
          I thought most water tanks had a glass lining in them. Since it is aluminum, it must not need one. I had a call from a guy with a steel tank with a pin hole. I'm sure it was a glass lined tank and I turned down the attempt at repair. Maybe I was wrong with the lining, but a plumber friend of mine said he had never seen a metal tank without a glass line. Anyway, nice repair. Surprised that someone even got the mig to stick without blowing a hole clear through it.


          Dynasty 350 - My New Baby
          Millermatic 210 Mig with Spoolmate 3035
          Miller Thunderbolt XL 225/150 AC/DC Stick Welder
          Miller Specturm 625 Plasma Cutter
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          All of which my wife says will be a "he$$ of a garage sale"

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          • #6
            Hey Doctor-Doctor

            Yes your tank can be fixed and some times it can't be done because of the extent of the crack, the reason I say this is we would got them in all the time when we had our family R.V. dealership in Michigan.

            It just depended on how much the customer wanted to spend on the repair or the cost of a new tank? We (I) would do just about the same thing for repairing tanks look at what would be the best route for our shop and the best cost saving method for the customer and still be good in the long run.

            Pretty much just cut out the bad spot till got good materail to make repair then cut patch for over lay or cut to fit in spot from cut out then reweld back in place, put some pressure to it for a certain amount of time for safety reasons and also show the customer what we did and how we tested for leaks, so-far so good never had any that leaked in all the years we did them and still talk to some of the customers around town and still holding good pressure.

            So yes it can be done just keep in mind the most cost effective way and "SAFE WAY" remember YOU ARE THE ONE WHO'S LIABLE IF IT FAILS!
            then the customer can and will come back on you.

            Just my opinion and dealings with these tanks.
            Syncrowave 250/Coolmate-3-(home)
            RMS-14 (kisser button)-(home)
            Craftmans/S-K tools-(home)
            Grizzly 16" vert band saw-(home)
            DeWalt chop saw-(home)
            Craftsman 4"-7" hand grinders
            Lincoln 225 arc welder
            Lots of vise clamps(not enough)
            assortment bar clamps

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            • #7
              I fixed my umptienth one thursday.
              The ones you want to turn away are the ones with the pinholes at the bottom.
              They have been leaving that pink RV anti-freeze to set in the thing, and it eats thru the tank.
              You just need to let them know it could be the problem when they leave it. When you start the repair you will make more holes than fixed. Those babies pop open everywhere! Then they have to buy a new tank.

              www.facebook.com/outbackaluminumwelding
              Miller Dynasty 700...OH YEA BABY!!
              MM 350P...PULSE SPRAYIN' MONSTER
              Miller Dynasty 280 with AC independent expansion card
              Miller Dynasty 200 DX "Blue Lightning"

              Miller Bobcat 225 NT (what I began my present Biz with!)
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              • #8
                Hey FK,

                LMAO

                Couple years ago a customer with his boat in the yard complains that he can't seem to get any hot water from his hw heater.

                Checked out continunty on the element. Checked out OK.

                Pulled the tank. Shake it. No slosh. No water. Tank heavy on the bottom half.

                Cut tank open. 16" dia/6" thick block of balistic gelatin.

                Owner had left the water heater on for a week before he flushed the pink stuff from his lines. $600 later (new heater) he was good to go. Bet he doesn't do that again.
                Syncrowave 250 DX Tigrunner
                Dynasty 200 DX
                Miller XMT 304 w/714D Feeder & Optima Control
                Miller MM 251 w/Q300 & 30A SG
                Hobart HH187
                Dialarc 250 AC/DC
                Hypertherm PM 600 & 1250
                Wilton 7"x12" bandsaw
                PC Dry Cut Saw, Dewalt Chop Saw
                Milwaukee 8" Metal Cut Saw, Milwaukee Portaband.
                Thermco and Smith (2) Gas Mixers
                More grinders than hands

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                • #9
                  the first words out of my mouth when I saw the first picture were oh my god. Then the second picture showed a good repair. Nice job.
                  This is an automotive discussion forum that has some great infromation

                  www.autobodytoolmart.com/shoptalk

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                  • #10
                    It takes all kinds to make the world go around!!!
                    Nice repair!
                    I fixed one of those this spring myself, it was split on the seam.
                    It too had been patched once before, but at least they used the right filler metal!
                    I cut the weld out and started fresh, it turned out pretty nice.
                    at home:
                    2012 325 Trailblazer EFI with Excel power
                    2007 302 Trailblazer with the Robin SOLD
                    2008 Suitcase 12RC
                    Spoolmatic 30A
                    WC-24
                    2009 Dynasty 200DX
                    2000 XMT 304
                    2008 Thermal Dynamics Cutmaster 52
                    Sold:MM130XP
                    Sold:MM 251
                    Sold:CST 280

                    at work:
                    Invision 350MP
                    Dynasty 350
                    Millermatic 350P
                    Retired:Shopmaster 300 with a HF-251

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