What a cool web site. I love it.
Occasionally I will hear this moaning sound in the plumbing when I flush the toilets, use the washing machine or use the sinks. I tried turning off the water supply to the toilets to find out if it was a ballcock assembly, but that didn't stop the noise. What could it be? I would also like to mention that in my washing machine, the cold water comes out slower than the warm and hot and it makes a noise kind of like there is a restriction (sort of a whooooo noise). Any insight to this?