How do you get poop buildup off cedar wood in coop?

[pinkforestcall]

Do do you get poop build up off coop?

I got a hard bristle brush and scrubbed with soap and water but it didnt do much.
See pics:

 

[WayneThopy]

I would use a heated pressure washer and/or a chicken scraper and water, which is a flattened out hoe. For that, a 4" METAL putty knife would be your best bet. Wet the manure first and let it soak for 20-30 minutes and then scrape it.