I have this problem that just started recently. When I flush a toilet in the house some of the other toilets make noises.

I have this problem that just started recently. When I flush a toilet in the house some of the other toilets make noises.
Try this and let me know. Take the lid off the toilet that makes the noise and flush another toilet. Does the float ball bob up and down when you flush? Let me know, Tom

I will try to check that but I should also mention that there is a time delay between the first flush and when the noise starts in the other toilet a few minutes.