Shop vac water question

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  1. diymirage

    diymirage HP@idle > hondaHP@redline

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    I have an old shop vac I use to drain rain water out of the paddle boats
    It works great BUT only has a 5 gallon capacity
    This is probably a dumb idea, but could I put an outlet on the bottom of the can to let the water drain out as soon as it gets sucked up, or would that kill the vacuum effect and just suck up air (which is lighter)?
     
  2. toplscuda

    toplscuda Well-Known Member

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    Tried that before. It will not build vacuum
     
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    • Dana67Dart

      Dana67Dart Like a fine wine, only getting better with age! FABO Gold Member

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      You could adapt it to a larger container, 55 gal drum for instance.
       
    • JoeSBP

      JoeSBP RLTW!

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      are the boats right next to the water?

      *edit, whoops I re-read your comment and see you said rain water..
       
    • diymirage

      diymirage HP@idle > hondaHP@redline

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      i wonder if i could put a valve on there
      *turn on the vacuum to start removing water
      *open the valve as the tank is 2/3 s full

      as long as the water drops out slower then it gets in, it might still work?

      that might be my best bet
       
    • JoeSBP

      JoeSBP RLTW!

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      It will just bubble in
       
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      • Dusterdenovo

        Dusterdenovo Contentedly Old School FABO Gold Member

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        What about a 2nd tank (drum?) thats sealed up, with 2 hoses - 1 connecting the bottoms of the 2 tanks and 1 connecting the tops. As long as the 2nd tank isnt higher then the 1st then gravity should do its job.
         
      • diymirage

        diymirage HP@idle > hondaHP@redline

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        not sure how this is beneficial over grabbing a larger tank and putting the vacuum on top of that?
         
      • JoeSBP

        JoeSBP RLTW!

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      • kursplat

        kursplat FABO Gold Member FABO Gold Member

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        i'd think it would work, but you'd need to block the regular exhaust
         
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        • pikewi

          pikewi Well-Known Member

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          I put a valve on the bottom of mine. Fill er up and open the valve
           
        • chryslerfat

          chryslerfat Well-Known Member

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          As soon as you open the bottom it will suck air past the water that is in it unless like kursplat said you blocked the exhaust at the same time that you opened the valve.
           
        • JoeSBP

          JoeSBP RLTW!

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        • MoparMike1974

          MoparMike1974 Well-Known Member

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          Some of them have a cap that unscrews to drain them.
           
        • abdywgn

          abdywgn dismantler

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          got a version that a hose attaches to and you can suck the water and pump out at the same time...put it pulls it in quicker than pumps it out. maybe a larger discharge hose?
           
        • pishta

          pishta I know I'm right....

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          just seal the vac hose though a 55g drum. Itll take a while to fill up. Then drain it with a spigot on the bottom connected to a garden hose. Water the plants
           
        • Tooljunkie

          Tooljunkie King of cobble/master of the broken bolt FABO Gold Member

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          Some vacs have a pump,then you can pump it out.
           
        • gzig5

          gzig5 FABO Gold Member FABO Gold Member

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          Cover the boats with tarps.
           
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          • RustyRatRod

            RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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            Sell the boats and the shop vac and put the money in your Mopar.
             
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            • diymirage

              diymirage HP@idle > hondaHP@redline

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              forget that, the mopar is the only vehicle i got that needs nothing
               
            • kursplat

              kursplat FABO Gold Member FABO Gold Member

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              then you don't have enough mopars
               
            • diymirage

              diymirage HP@idle > hondaHP@redline

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              amen to that
              i got a grand total of 2, and they are the 2 most reliable cars i have
              (one of which is a 08 charger, i think right now, average cost of ownership has been $1000.00 per year...and that includes purchase price)
               
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              • Dfr360cuda

                Dfr360cuda Well-Known Member

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                Sump pump ?
                 
              • RustyRatRod

                RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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                This is easy. Put a 55 gallon drum between the shop vac and the suction hose. Then you'll fill the drum first.
                 
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                • Dfr360cuda

                  Dfr360cuda Well-Known Member

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                  //////////////////////////////////////////////

                  We use this configuration at work to suck desiccant out of air dryers. One of them holds 750 pounds, so it sucks when you gotta keep stopping to empty the shop vac. Speeds up the process too so we can get more ass time.
                   
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