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5076 Views 2 Replies Latest reply: May 17, 2014 10:40 AM by davecuthbert RSS
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May 11, 2014 8:20 PM

Automated Water Flow Control

Good Day!


I'm trying to design a water flow controller that uses predetermined weight as an indicator for flow control. Like if a drum were to be filled only to a certain point, the water would flow until it reaches a defined weight then it would stop.

Anyone has any ideas on available schematics for such a device?



  • boborrob Journeyman 148 posts since
    Apr 4, 2014
    Currently Being Moderated
    May 16, 2014 12:17 AM (in response to JohnDavis)
    pressure pads

    For starters, do you plan on making the pressure pads yourself or do you intend to buy them? simple pressure pads are not very accurate but if your measuring fixed weights with room for error then you can make rudimentary ones. There are a lot of DIYs on

    If you plan on buying them i found


    they have a lot of choices for a plethora of functions.

  • davecuthbert Journeyman 87 posts since
    Feb 18, 2014
    Currently Being Moderated
    May 17, 2014 10:40 AM (in response to JohnDavis)
    pressure pads

    There are many ways to tackle your project. Here's one that's pretty simple. The drum of water sets on a platform supported by for springs. As water flows into the drum the platform lowers and an optical sensor senses when the platform has reached it. If this interests you we can see what Digikey has for suitable sensors.

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