Test a small area of the green stains to be sure that the tsp solution will remove the stains.
Algae and mildew removing from house siding help.
A pressure washer will definitely give a better point in cleaning.
Mildew and algae on vinyl and wood use a solution made of oxygen bleach not chlorine bleach mixed with water.
Spray the solution onto the siding avoid sprayers with aluminum parts starting at the top and working down.
Less volatile than chlorine it removes mildew on and below the surface as well as algae dirt and oxidized paint but won t harm plants or clothing.
I have green algae on the shaded parts of my deck.
Vinyl siding is durable but it is still susceptible to dirt and stains.
A chemical solution is necessary.
Trisodiium phosphate per two gallons of water.
If two applications do not remove the stains you may need to scrub in the solution with a brush.
Water stains remove with a mild detergent and water.
Oxygen bleach hydrogen peroxide.
It s also on my patio and my vinyl siding.
Mix a solution of trisodium phosphate and warm water into a large bucket.
Stains on wood cleanse with mild detergent mixed with water.
Choose a cleaning solution that is appropriate for the type of growth you have on your siding.
Hard stubborn mildew or algae is tough to remove with only pressure washing.
Thoroughly rinse everything with water.
Whether your vinyl siding is plagued by mildew moss algae or it s just plain dirty cleaning it is a must in maintaining the appearance of your house.
If you wash the house when the siding doesn t yet have mold or mildew growth you might be able to accomplish it using a garden spray attachment to your garden hose.
Instead of putting dangerous.
Generally use lb.
Bleach can harm plants discolor the finishes on trim and corrode aluminum brass and copper.
On top of that you need a vinyl siding cleaner that fits with your pressure washer and does the cleaning with ease.