What is making this sound?

[BobDoe123]

Hello, I'm curious to know what is creating the sound from this Youtube video assuming all of this is done only with water flowing through the fountain.

https://www.youtube.com/watch?v=6O9fRrGy3lM&feature=youtu.be

Thank you very much for your time.

 

[GregLocock]

It sounds like the electric booster pump on my off grid service, but could easily be a piece of ptfe tape fluttering in the pipework.

Cheers

Greg Locock


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