Q: Several years ago, we replaced our aluminum gutters with larger ones to handle heavy rains and avoid flooding. From the very beginning, they started to stain from rain and occasional backup. We try to keep the gutters free of leaves but it’s hard, especially on the second story. Do you have any suggestions on how to remove water stains on gutters?
Democracy Dies in Darkness
My aluminum gutters have unsightly stains. How can I clean them?
The best method depends on whether the stains are algae or mildew, or they contain asphalt residue from the roof shingles.
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