u/ChellHole

I can't find this anywhere. There was an ad maybe 15 years ago, i think it was for a hot water system? Thy whole ad is a song that starts with something like: "I found it! The system! The complete (cleaning? heating?) system!"and then everyone starts singing this. It wraps up with something like "And so say all of us! And so say all of us!"

Anyone remember this or ever better have a clip?