Steam-cleaning is extremely effective, just like pressure washing is... if you get a steam genny, you'll have almost effortless cleaning. If you can't get access to one, simple green and a hose-attached soap dispenser (or fertilizer dispenser) will work too. Don't let it sit on rubber/neoprene hoses too long, they'll soften.
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"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
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