Need advice on first awning cleaning

Working on doing my first fabric awning cleanings.

They all have noticeable mold growth on them (like most of the pictures here). I cleaned them all with a 25% SH, and soap (Tried Elemonator house wash soap, EBC, and Tide) mix. All soaps were seperate, I had 3 different batches I tried on different awnings.

All mold turned white, but nothing removed it from the awning. All mixes were brushed on with a thick bristle carwash style brush with a couple applications then rinsed with my PW soap tip from a distance.

What am I doing incorrectly?


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I like what he said^^^

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