Use the sprayer wand to evenly disperse the tsp mixture all over that section of siding.
Bleach on aluminum siding.
Spray down the siding with plain water from the garden hose.
However bleach can change the color of the metal.
Spray this mixture on remaining spots.
Like using homemade deck cleaner with borax there are eco friendly alternatives for cleaning without bleach or store bought chemicals.
Fill the bucket with hot water and a biodegradable detergent according to the product s label.
It can be applied with a pressure washer with water supplied from a tap and then rinsed off after five to 10 minutes.
Let the cleanser sit for a couple minutes before scrubbing.
It s not uncommon to have a mildew problem on aluminum siding depending on where you live.
Scrub as hard as possible without buckling the aluminum.
Step 6 rinse off the siding with a hose and water.
Add 3 4 cup of household bleach or vinegar to each gallon of water if needed.
Trisodium phosphate is powerful so be cautious.
To clean aluminum siding having mildew use a solution of one part bleach and four parts water.
After some time the aluminum surface may darken or even turn black.
Bleach will not cause immediate corrosion or bubbling on aluminum foil or an aluminum surface.
Remove mold from aluminum siding with borax banish light mildew mold and chalky build up from aluminum siding by cleaning with trisodium phosphate or borax.
Clean the aluminum siding with a sponge dipped in the water bleach solution.
Don t mix bleach with any cleaner that has ammonia in it.
Step 4 fill a clean empty garden sprayer with a chlorine bleach and water mixture.
If mold or mildew is the culprit spraying with a bleach solution will remove it.
If cleaning siding manually dilute 1 5 cups of the concentrate in 13 5 cups.
Make sure the aluminum siding is still wet from the rinsing step.
Use a high pressure nozzle on the garden hose to remove loose dirt and debris.