Affordable Water Detector for Plastic Tanks - Expert Tips

In summary, the conversation is about building a cheap water detector that can indicate when water reaches a certain level in a plastic tank. The suggestion is to use a simple float switch, such as a ping-pong ball glued to a mini-lever switch or two metal strips connected to a detector circuit. The issue of potential malfunctions and the need for waterproofing is also addressed.
  • #1
AR1234
2
0
I'm new to the forum, and will much appreciate your advice.
Looking to build a cheap water detector, that will not change the chemistry of the water.
It should simply indicate if water is touching it (if water reach a certain level in a tank made of plastic).
Many thanks
Al
 
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  • #2
Hi, AR.
Although I don't know the scale of your project, a simple float switch should suffice. As long as there is no turbulence in the water, you can pre-tune it to the point that a mm or so of additional water will trigger it.
 
  • #3
Any reference or direction for a "simple float switch"?
My limited experience with floats was that they sometimes remain stuck; any insight will help.
Many thanks,
Al
 
  • #4
Well, I'm no expert on this by any means. Something like a ping-pong ball glued to the end of a mini-lever switch (waterproofed with latex or silicon) would work quite well.

edit: The waterproofing isn't necessary if you can be sure that the switch will remain dry.
 
  • #5
In some experimental submersible sonar units we used two metal strips glued very close together in parallel on a non-conductive surface. Each was connected by a wire to a detector circuit. To one we applied +5 Volts and the other became the input to a comparator. If water intruded (leaked in) it conducted enough of that +5 Volts to switch the comparator to "true= leak".
 

What is a water detector and how does it work?

A water detector is a device used to detect the presence of water in a given area. It works by emitting a signal or using sensors to measure the conductivity of the surrounding material. When water is present, it alters the conductivity and triggers an alarm or alert.

What are the common uses of a water detector?

Water detectors are commonly used in homes, buildings, and other structures to detect and prevent water damage. They are also used in industries such as agriculture, mining, and construction to monitor water levels and prevent flooding.

Can a water detector detect different types of water?

Yes, a water detector can detect various types of water, including freshwater, saltwater, and wastewater. However, some detectors may be more sensitive to certain types of water, so it is essential to choose the right detector for your specific needs.

Are there different types of water detectors?

Yes, there are different types of water detectors, such as electronic, acoustic, and visual detectors. Electronic detectors use sensors and alarms to detect water, acoustic detectors use sound waves to detect changes in water levels, and visual detectors use color changes or light to indicate the presence of water.

How accurate are water detectors?

The accuracy of a water detector depends on various factors, including the type of detector, its sensitivity, and the environment it is used in. Generally, most water detectors have a high level of accuracy and can detect even small amounts of water. It is essential to follow the manufacturer's instructions and regularly calibrate the detector for optimal accuracy.

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