I’m experiencing a water hammer noise when closing taps. I’ve also noticed that when the kitchen sink tap is running, I can hear what sounds like water flowing inside the wall near my bedroom bathroom. I’m unsure what’s causing it. I’m offering $30 for the initial call-out and inspection only to identify the problem. I’m flexible with the final repair cost. Once you’ve inspected the issue, explained the cause and recommended a proper, long-term fix, we can discuss and agree on the final price before proceeding. Looking for someone experienced who can diagnose and fix the issue properly. Location - Tarneit