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    topcheese123's Avatar
    topcheese123 Posts: 4, Reputation: 1
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    #1

    Nov 30, 2013, 12:19 PM
    Science Project
    So I'm trying to make a science invention but I don't know how to make it work. I plan on having someone sit on a toilet seat causing pressure. When the pressure is released a sound goes off that doesn't stop until the toilet is flushed. But how do I do this? Please Help!
    Wondergirl's Avatar
    Wondergirl Posts: 39,354, Reputation: 5431
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    #2

    Nov 30, 2013, 12:51 PM
    Is the sound supposed to alert the person to flush before he leaves the bathroom?
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    topcheese123 Posts: 4, Reputation: 1
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    #3

    Nov 30, 2013, 12:54 PM
    Quote Originally Posted by Wondergirl View Post
    Is the sound supposed to alert the person to flush before he leaves the bathroom?
    Yes exactly
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    Wondergirl Posts: 39,354, Reputation: 5431
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    #4

    Nov 30, 2013, 01:00 PM
    Seems like you would have to hook up something inside the tank (to the trip lever) and connect it to the seat (pressure). Are you okay with a wire/cord going from beneath the seat to inside the tank?
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    topcheese123 Posts: 4, Reputation: 1
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    #5

    Nov 30, 2013, 01:03 PM
    If possible it would need to be visible
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    Wondergirl Posts: 39,354, Reputation: 5431
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    #6

    Nov 30, 2013, 01:11 PM
    Quote Originally Posted by topcheese123 View Post
    If possible it would need to be visible
    The seat would have to be "soft" or flexible. A wooden or plastic seat would be too rigid and wouldn't "notice" the pressure. (I'm thinking the pressure-recording device would have to be UNDER the seat.) And you don't want any alerts while the person is using the toilet (and scare him) .

    Would just a noise be enough of an alert? The person wouldn't understand a noise and might think something is wrong with the toilet. Too bad it couldn't be a recording, "Please flush, please flush, please flush" that would continue until flushing happens.
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    topcheese123 Posts: 4, Reputation: 1
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    #7

    Nov 30, 2013, 01:27 PM
    I understand what your saying but I'm desperate and have a short amount of time to finish this project
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    Wondergirl Posts: 39,354, Reputation: 5431
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    #8

    Nov 30, 2013, 01:36 PM
    Quote Originally Posted by topcheese123 View Post
    I understand what your saying but I'm desperate and have a short amount of time to finish this project
    When is it due? How long have you been working on this?

    I PMed two of our Plumbing guys to look at this thread and tell you if this is even possible. This is YOUR project, so I warned them only to give you hints, not tell you how to do this. I don't know when they will be online (they come on several times a day), so check back now and then.
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    Wondergirl Posts: 39,354, Reputation: 5431
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    #9

    Dec 3, 2013, 10:49 AM
    One of the Plumbing guys PMed me with this:

    "this would be more of a electronic question whether than a plumbing question. But if I had to improvise. I would put a context switch in the seat that connects to a normally open relay. This will activate a sound,(could be a quiet Bell or buzzer) that only quits when you push the flush lever."

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