Spray on fluid for cleaning vinyl siding - what's the best?

[Industrial Toys]

I got an idea when I went for my annual rustproofing. They had a foam system to wash vehicles. Well I bought a FOAM CANON off E-Bay from China for use with a pressure washer. Works Great. You can use various chemicals in it. The point is, the foam stays for a while, rather than running off.

 

[thepumpguysc]

The absolute best stuff I've used & now the only thing I use is> JO-MAX.. in a garden sprayer. Its a concoction of JM & bleach & water.
BUT it should be used in "full sun".. its amazing..
Your results may vary if not used in full sun..
I usually spray the house down about an hour before the sun hits the house & let the sun come up & do its thing..