"Ray K" wrote in message
...
Just about every screen for use at the input of a downspout has a very
fine mesh, perhaps blocking debris as small as 1/8", even though such
small stuff would pass harmlessly through a typical 2x3" downspout. This
causes the screen to clog, preventing the gutters from draining and
causing them to overflow.

It seems a better design would be something like in kitchen sink drains
use: a large cross that blocks only the stuff big enough to potentially
cause a downstream blockage.

Thanks for your comments.

Ray


The ones I use are sort of pear shaped and made from wire, not screen. They
catch leaves and pine needles, but not fine silt. You just place them into
the downspout inside the gutter.

Same item, but look at the price difference at these two places
http://www.idealtruevalue.com/servlet/the-65696/Detail
http://www.improvementscatalog.com/h...ut-screen.html

This is cheap enough
http://www.idealtruevalue.com/servlet/the-20859/Detail