OK this one is a little hard to explain, but basically there is a
"super gutter" above in a valley section of the roof and it drains
into a downsprout. The downsprout extends about 10 inches down then
turn 90 degrees for about 4 feet, then turn 90 degrees again to
connect to a straight section of a downsprout which leads into the
foundation and eventually drains outside on the other side of the
I removed a section of the soffit to expose the two 90 degree
sections. As you can see, I have two of these one on the left side
and one on the right side of the interior courtyard.
I have always wonder why draining was so slow, and now I understand
with the two 90 degree elbows it is just not flowing fast enough.
Furthermore leaves and debris often gets washed into the downsprout
and further slows the flow.
So I am installing two mesh screens at the top of the drains.
However the two 90 degree elbows must be adjusted. the almost
horizontal piece of the downsprout is also corroded and broken (see
the red circle area). My plan is to attach a new piece but give it a
better slope. However I cannot find a replacement downsprout. These
measure 6"x4.5" and was welded together (built in 1972). I do not see
any downsprout with that size. Any suggestions what I can do there?