Called a friend of mine that has the screen on all his gutters.
He claims people get hung up to install and forget.
Here's the problem.
When the stream of rainwater is restricted, and doesn't flush out the gutter of
silt/sand/granules from shingles and build up near the down spout inside the gutter.
If not check, silt builds up and needs cleaning.
Big job if you got a 2-story house.
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