I use Mistral with a pump action sprayer like
this one :-)
Works a treat, has an adjustable sprayer, from fine to really coarse. And only cost a few pounds to buy. I can dilute the disinfectant to the strength I want too :-)
I also use bio washing liquid diluted in the watering can, or in a little hand sprayer. For smellier applications - urine on small patio in the summer can get a bit whiffy, but soon sorted with this :-)