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HeyBub[_3_]

wrote:

Typically, the problem with gutters is NOT debris entering the
downspout. It's debris, usually leaves, filling up the gutters
themselves and blocking the downspout opening. Putting a screen at
the downspout opening is just going to make it worse. I've never had
a problem from the downspout being clogged anywhere other than the
opening, which occurs when the gutters already have a lot of leaves in
them. Until that point, anything that goes into the downspout, just
goes right on through.

Exactly. The downspout is larger than the hole. If the detritus can make it
through the hole, it's gonna - go - all - the - way!

Same with kids and pebbles - if they can swallow it, all will be well.