Hooked up at home to my house spigot, my in-line hose filter and regulator will clogs up about once a week. I simply take them off the hose and force water through the opposite end. It backflushes the "gunk" out and I'm good again for a few days. I'm on a well at home and it's really full of minerals! My outside faucet does not go through our home filtration system.
Just take the regulator and force-spray it the opposite direction. It will probably clean it out and you'll be good to go again for a while!