Hello all, I have noticed that a few of my neighbors have configured their gutter downspouts to drain into a sump pump reservoir, occasionally drained by a sump pump. While that sounds like a neat way to "fix" a clogged/rooted downspout drain, I cannot help but think that this is a bad idea due to either the inevitable failure of the pump, a power outage, a tripped breaker, or anything else that would render the pump inactive.
In such a case the downspouts would overfill the sump basin, typically located near the foundation, and flood the crawlspace/erode the dirt underneath the foundation.
What say you? Ever seen this type of method before?
Jon