Pipes 'hum' when toilet is flushed and water pressure is low
Please help - our home is only 5 years old. I came home from a deployment to find our plumbing 'humming' whenever we flush a toilet. The husband didn't notice because he wasn't away for a year like I was...(oops). Additionally, our water pressure seems to have taken a dive. We do not know how to check our water pressure level and we certainly don't know why the plumbing makes noises. We do have a water softener which we put in when our home was built. Any assistance you can provide is greatly appreciated.