Peep wrote:

Hey Everybody!
I'm having some weird and very loud plumbing noises. It started with
the toilet and now is basically throughout the house. Sorry for the
description, but the noise sounds like a trombone--off key
A few minutes ago, I was sitting outside on the patio and could hear
the noise out there. There was no water running--washer, faucets, etc..
So I Googled and here I am asking for advice.
I would appreciate any advice. This is my first time doing anything
with home repair. May I ask that you put any advice into simple words?
Thank you very much,
Peep


You were on target with the toilet.

Certain brands of toilet tank fill valves will create
a "fog horn" (trombone if you prefer:-) sound as the
valve closes. The valve closure is actually a chattering
which resonates with the rest of the plumbing in the house.

There are repair kits for those fill valves (ballcock)
but the novice may be better off replacing the whole valve.
Ask at a friendly hardware store or BigBox.

Jim