I wouldn't be 'hosing' out a coop, you want to keep it as dry as possible. Wet=stink.Ty, so good to know. Just built a nice chicken house with lenoleum floor so I can hose it out from time to time but I noticed that the smell builds quickly in it. I will certainly be getting some. 9.99 at our local Tractor supply!
How's your ventilation?
Good ventilation is key to reducing odor and good healthy air.
I use shavings on floor(changed out once a year) and PDZ/sand on roost boards(that get poops sifted out every other day)....very little odor.