Use ammonia cleaners or a solution of.
How to remove streaks from vinyl siding.
Wash vinyl siding with a soft cloth or ordinary long handled soft bristle brush.
Mix a strong solution of siding cleaner or other strong detergent and hot water.
To prevent streaking from soap and water running down the house during cleaning start at the bottom of the house and work up.
Remove tough stains clean tough stains off with a nonabrasive cleaner or a homemade vinyl siding cleaner of soap and water that won t damage.
Clean stubborn oxidation using a slightly stronger mixture of 1 3 cup of laundry detergent 2 3 cup of household.
A pressure washer can quickly ruin vinyl siding by cracking it with the high pressure stream of water so it s necessary to know which pressure level and nozzle to use.
1 quart liquid laundry bleach.
1 3 cup powdered laundry detergent.
For best results use a cloth or soft bristled brush and start from the bottom so your cleaning solution doesn t leave streaks or just drip off the side of the house.
Once the general cleaning is completed you are ready to tackle the stain.
Mike from powerpro mi discusses how to clean and power wash your vinyl siding.
For tough spots like paint drips tar and pencil and pen marks use a nonabrasive bathtub cleaner or nylon scrub pad.
Use the cleaner designated for the particular stain you are working to remove from the list above.
I would think the streaks or patches are just places you missed or hit real good with the power washer.
Try to clean siding on cool or overcast days or when the sun is not at its brightest during the early morning or.
Is the siding vinyl.
It took a stiff bristle brush in several places to get the siding even again along with another thorough power washing.
To prevent streaking start at the bottom and work up towards the top.
Oxidation and mineral stains can be removed from your vinyl siding.
I also had the same thing on my house and discovered that was the problem.
1 gallon of water.
2 3 cup powdered household cleaner.
Scrub the area with a scrub brush and the solution.