I think you've got it right. Please tell me, does your company provide plumbing services? I need to consult with a plumber about my water heater. It's leaking a bit, and I'm afraid it will cause more severe damage. My sister advised me to address this company http://wilcoplumbing.com.au, and I'm going to find out if they're doing that kind of repair. But it's also interesting to hear more professional opinions from here. Share your view. Does it make sense to assume that it is leaking because of the pressure in the system? It said us our friend who works as an engineer. But I'm a little doubtful.