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Overfill Switching???

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  • Overfill Switching???

    Ok, for some reason, this has me flummoxed.
    If a sub has a bag , with an overfill micro switch, once the switch is tripped and therefore the pump is turned off, how do you then bypass the switch, so that you can restart the pump to empty it the bag??
    A man of true Frankenstinean proportions!!

  • #2
    Originally posted by Kim Sleep View Post
    Ok, for some reason, this has me flummoxed.
    If a sub has a bag , with an overfill micro switch, once the switch is tripped and therefore the pump is turned off, how do you then bypass the switch, so that you can restart the pump to empty it the bag??
    Put the second switch in parallel with the first switch. Duh!

    David
    "... well, that takes care of Jorgenson's theory!"

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    • #3
      I guess I should have said thathow is this all switched without using up a ton of channels??...Hey nobody said I was smart...just good lookin'
      A man of true Frankenstinean proportions!!

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      • #4
        Originally posted by Kim Sleep View Post
        I guess I should have said thathow is this all switched without using up a ton of channels??...Hey nobody said I was smart...just good lookin'
        Is making it a three-position switch an option, Kim?

        David
        "... well, that takes care of Jorgenson's theory!"

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        • #5
          There are a couple of ways of doing this, all from a single channel. method used depends on the type of pump used. Are you using a reversible pump?
          DIVE IN! Go on, go on, go on, go on, GO ON! http://www.diveintomodelsubmarines.co.uk

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          • #6
            If you add a diode to the overfill switch, it can shut off current flow in one direction but allow you to flip the switch and drain the bag when using a reversible pump. This is what rc subs out of Hong Kong does.

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            • #7
              Yes- I posted this in tips and tricks a short while back-its a different system but the blocking diode works the same (instead of a pressure switch insert your limit switch Click image for larger version

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              • #8
                Holy crap....lookit that. Just to add, my pump is reversible peristaltic. I would prefer not to have to use a pressure switch if possible.
                A man of true Frankenstinean proportions!!

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                • #9
                  Originally posted by Bob Gato View Post
                  -its a different system but the blocking diode works the same (instead of a pressure switch insert your limit switch) Click image for larger version  Name:	image_40797.jpg Views:	0 Size:	68.9 KB ID:	135943
                  Please reread the narrative...especially the last nine words

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                  • #10
                    As I am using a bag, I dont think that I can use a float switch, Im sorry Bob, you spent time with the great, easy to understand illustration. So any ideas on Bag switching??
                    A man of true Frankenstinean proportions!!

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                    • #11
                      Click image for larger version  Name:	P1080024.JPG Views:	0 Size:	42.8 KB ID:	135960 Sorry-that was a diagram of my sub-that wasn't a float switch its a "clunk" so the water is always pumped from the bottom of the tank (which you don't have)
                      Lets start from the beginning...this diagram might be easier...
                      Last edited by Bob Gato; 01-08-2020, 02:27 PM.

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                      • #12
                        Ok, Tah-Dah...now I understand that.
                        A man of true Frankenstinean proportions!!

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                        • #13
                          Originally posted by He Who Shall Not Be Named View Post

                          Is making it a three-position switch an option, Kim?

                          David
                          Any configuration of switching is available.
                          A man of true Frankenstinean proportions!!

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