Outdoor people HELP, cleaning+waterproof solution needed

finalfantasy7

Semi-Pro
Basically i've got a waterproof berghaus , and it needs washing, ive lost the booklet which came with it, on tag it just says wash in non biological solution.

My question is what should i be washing this with? what do you use, and after what should i be using to re-waterproof it- what do you lot use?
 
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