How to Unclog and Clean Downspouts on Gutters Jun 21, 2018 Posted by: Jeffrey Terrell clean gutters safely, Clogged downspouts, gutter cleaning tool, Gutter Viper, how to clean high gutters, how to clean two story gutters, How to Unclog and Clean Downspouts on Gutters, leaf blower attachment, no ladder, Stihl Here's a stepwise approach to clogged downspouts. But remember to clean your gutters frequently and downspout clogs should be much less common. With the Gutter Viper, you can keep up on the cleaning easily, prevent the clogging . . .