Mix 1 cup of bleach and 1 gallon of water together in a bucket.
How to kill algae from gutters.
Bleach is a caustic chemical that can kill your lawn and plants.
Wait for 10 to 15 minutes before continuing.
Bleach can discolor roofing materials kill the vegetation around your home and speed up the corrosion of metal gutters downspouts and metal gutter guards.
Find out what products can remove the mildew from your gutters without damaging them.
Some homeowners also try to get rid of algae by using bleach.
Get tips on removing mildew from your home s gutters.
Use a scrub brush to scrub the mixture into any lingering algae stains.
You can also spray the gutter and then brush it but make sure the rag is damp first to avoid abrasive friction.
Using bleach on algae requires brisk scrubbing and rinsing.
It s always a good idea to test an inconspicuous area of gutters to see how they will react to the degreaser.