# Circuit is not getting completed by bucket water

I have a battery and a 5V active buzzer. Putting the end of circuits (just raw wire) in the bucket full of the tap water is not completing the circuit. The buzzer, battery, and circuit are fine since when I just connect the battery and buzzer, it gets completed, and the buzzer starts buzzing.

Components used

Wire: 0.55mm copper wire
Battery: 3 x SR44 1.55V 190mAh = ~4.5V
Buzzer: 5V Active Buzzer


I have a use of this project. I have to check if water is coming out of another end of pipe. I also tried to put the wires at the end of a pipe when water was flowing through, and the circuit was not complete.

For picturing the circuit/components (I hope it can give the idea)

I am not sure here. Should I change the wires or increase the battery (by adding a few more SR44 cell)?

I am just a hobbyist and do not know many peculiar details. I would need your help to get this circuit working when water flows. Thanks.

• The conductivity of water varies a lot based on its salt content. It might be too high resistance for your buzzer to buzz. Jul 24 '21 at 4:07
• As in add some salt to your water. And give it a stir to dissolve it. Jul 24 '21 at 6:42
• If you are just looking for a buzzer, there are countless decent products for just a few US dollars. Look for toilet/bathroom water alarms. They have two metal contacts and they make quite a sound! I'm sure you could adapt one to your needs. I built my own for use using a few BJTs and some MOhm resistors. Worked very well until the nice commercial units arrived in the mail.
– jonk
Jul 24 '21 at 8:27