Thank you plumbingdoctor,
My plumber replaced the Acquasaver valve, and the noise is gone for the time being. The tank is empty now and if the noise comes back, I…

My plumber told, he has installed more than hundred Acquasaver valves and this is the second one had issues with, anyway he took it back and going to claim the…

Thanks H2O for your valuable suggestions.
My plumber came and replaced and Aquasaver valve and the random noise is gone. There is some noise from the pump, but it is…

Really appreciate your help H2O.
I tried to check the pump, however it is not connected using a flexi pipe, so I was unable to lift. I can see it is…

Thanks H2O.
The noise is coming from the wall where the rainwater connection is. the sound is much louder inside compared to outside
The cistren will fill in 2-3 minutes.
I am not…

Thank you Enricogala,
Building for the first time,and never thought of this issue.
I am not sure it is the issue with pump, when I stand next to the tank, there is…

Thanks H2O,
I am in Sydney ( Parramatta), could you please recommend someone, who can do an inspection and identify the issues?

Thanks H2O for the detailed reply.
As you said, I think the plumber has installed a pressure tank.
I tried to check the make and model of the pump, unfortunately I could…

Thank you SaveH2O
Is that (That sounds like there is either a pressure tank or the mains water switching device has switched over to mains water. ) the normal way they…

Thanks Saint Mike.
It is less than a year, the plumber came and had a look. He said the noise is normal.

Hello,
We've just moved into our new house. Our rainwater tanks are connected to the toilets, I've noticed when we flush it is quite noisy. The pump is not engaged…