Arrived on site client stated there was a noise when flushing the toilets. Upon inspection we did not hear the noise at first but one of the shutoff valves for the toilet was leaking so today we replaced a leaking toilet valve. When we were done we turned the water back on and that’s when we heard the noise. The noise appeared to be coming from the Prv and there is a leaking ball valve that only leaks when turned either on or off. Client will hold off on the Prv or ball valve for now.