Step 1 put on rubber gloves.
Clean wood siding without damaging paint.
The cloth will likely come up dark gray with a layer of fine soot.
Mix 3 4 cup of oxalic acid granules and 1 gallon of hot water.
At 46 inches in.
Even after pressure washing you may still find that a thin layer of dirt remains on the siding.
Use a cleaner specifically designed for cleaning siding and always check the label to make sure it s safe for wood.
Rinse the siding using the pressure.
Stand roughly 4 feet away from the cedar while washing.
Spray grimier spots with a siding cleaner and brush.
Wash the siding area with the pressure washer.
Work down from the roofline taking on one 10 foot square section at a time.
Wood stain is one of the most difficult stains to remove but a variety of products will take wood stain off your vinyl siding without harming it.
Maybe that s what you are going for but if you intend to keep stain on wood don t use a pressure washer to clean it.
Hold the hose in one spot for about 20 seconds before moving on to another part of the siding.
Pressure washing will pull stain right off of wood surfaces.
Insert the detergent tip which is often black into the pressure washer wand and apply detergent as needed.
Clean the soap and remaining grime off the siding.
But over the years your house will experience paint failure faster than if it were applied to clean siding.
As an experiment rub a clean white cloth across the unwashed siding.
Point your pivotpro hit the trigger and start spraying cleansing water against your dirty wood siding.