Never had water run over the edge of gutter before Leaf Filter was installed. We now have the problem you install gutters for in the first place-water runs off onto ground and makes indentations in lawn.
Came out when I complained and was told we need new gutters when we did not have ANY problem BEFORE Leaf Filter!!
DO NOT BUY!!!! If they were going to cause a problem they should not have quoted and guaranteed!!!!
I didn't like: System not working, Not happy with explanatio.