This noise is produced by water as it falls or drips and hits the elbow below.
Gutter downspout opening noise.
The matted cushion strip absorbs the drip noise.
The loud dripping noise created by water drops is intensified by vibrations.
The chain hangs down from the gutter downspout opening allowing water to trickle down it smoothly and quietly.
The water pouring onto your roof creates a soothing white noise that clears your mind and calms your soul.
Noise out of your downspout.
When the elbow is reinstalled the silencer is.
A downspout chain basically replaces the biggest part of the gutter by hanging it along the gutter downspout opening and allows the water dribble to move down the chain effortlessly without making a noise.
Gutter downspouts with elbows can sometimes amplify the sound of water dripping through them.
Contractors have tried fixes like installing a lead plate in the elbow then a magnetic cushioned plate but those fixes usually just change the tone from a metallic drip drip drip to.
Placing insulation around the downspout especially on bends where water drops hit will help to reduce the vibrations that make loud dripping noises.
That is until your gutters and downspouts join in.
It is however not an appropriate solution where heavy rainfall occurs.
If you have a window near your gutters and downspouts the persistent clunk clunk clunk or thud thud thud of rain hitting metal may wake you up rather than help you drift to dreamland.
These vibrations are caused by water drops hitting the metal sides of the vertical gutter runs.