Pressure washer for Deck

[weaponsystems]

I built a composite deck made with apex-type floors (but its all plastic, no wood filler). After grilling and frying stuff on the grill for past year, I noticed the floor getting darker from buildup of grease mostly.

So I just purchased a 2000 psi pressure washer, and spent an hour 1 day, and another hour the week later. It cleaned up a lot of cr@p like gum, mud, bird droppings, etc. Some grease. There still darkening on some area where grease has splattered for the past year.

How high can I go psi-wise with any pressure washer that will be effective for cleaning out vinyl decking? 3000, 5000?

Will higher power damage the floors?

 

[titanpat57]

I wouldn't go anymore pressure but try some stuff called TSP...it can be found at the big box stores or a paint store should have it. READ the label instructions!! Do a test spot in an inconspicious spot to make sure it doesn't cause any damage.

 

[Michael Hanson]

Try bleach on a (small) place,see if it lightens it. Mke

 

[MANUCHAO]

Have you try oven cleaner ??
I wouldn't go any higher on the PW.
I have a 4k psi and had some oil stains on the drive way..
It took the oil stain along with the concrete...

 

[davegonz]

The rotating nozzles work really well to clean stuff up. They are basically a zero degree nozzle that rotates 360degrees.

http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200323797_200323797