Install a bulb shaped or wedge shaped leaf strainer into the outlet of the gutter.
How to keep gutter downspouts from clogging.
Industrial nylon gutter guards will be far more successful at preventing downspout clogs.
You should either regularly check the condition of the downspout yourself or have the downspouts checked by an experienced plumber.
Your gutters will still need maintenance.
This method works best if the gutter is clogged with leaves twigs pine needles or other small dry debris.
If the outlet hole in gutter at top of downspout in a gutter is clear water will always flow out of that gutter even if there is debris in the rest of the gutter.
You can insert the end of your leaf blower into the bottom of your gutter downspout and try to push the clog through.
Covering the gutter is the easiest option which relies on surface tension to direct water back into the gutter while preventing leaves from falling in.
You can t rely on this product to always keep your downspouts from getting clogged all the time.
The answer is simple.