Why would you ever need to repair an aerator? If you have a problem with your spray hose unit then repairing the aerator is one of the things you can do to solve the problem.
If you are not sure if it's the aerator that's actually causing the problem with your spray hose unit then you should first identify the source of the problem with your spray gun. Once you have determined that it's the aerator portion of the spray head that is responsible for the issue, you can get started with repairing the aerator.
Usually it will be pretty easy to tell if the aerator is at fault or not. All you have to do is give it a close look under good light. Is the water flow much lower than it used to be? Is water squirting off at various angles? If so, then you can be pretty sure that the aerator screen has actually become clogged over time. It might be badly clogged up with sediment or it might be clogged with mineral deposits from the water flowing through. This is similar to what happens when you get a clogged drain. Either way, you just need to give it a good thorough cleaning and this should fix the problem.
What Tools You Need to Repair the Aerator
  • White vinegar
  • Small knife (like a penknife or swiss army knife)
  • Adjustable wrenches
  • Soft cloth for cleaning
  • Stiff brush with fine bristles
8 Steps to Easily Repair Your Aerator
  1. Remove the aerator.
  2. Disassemble the aerator.
  3. Back-flush the perforated disc and the screens with a strong stream of water. Watch out that any small parts don't go flying down the drain, or you could end up with a clogged drain.
  4. Soak the parts in vinegar for a few hours if water has not removed all the sediment.
  5. Dry all the parts carefully.
  6. Once the parts are dry, you can use the stiff brush to brush them off gently.
  7. If necessary, use your knife to scrape stubborn sediment off the parts. Be very careful and always scrape in the direction away from you.
  8. Reassemble the aerator. Be sure to position all the parts correctly.
Once you've repaired and cleaned your aerator, turn on the spray gun. Is it working better now? Are you getting a strong, steady stream of water that doesn't leak or squirt out in random directions? If the problem isn't fixed, go ahead and remove all the parts again because it's possible that you put it back together incorrectly.
If you have put the aerator back together properly and it is just not working any better, than you may need to simply replace your aerator or replace the entire spray gun unit. But always try to clean the aerator first as it is more usual that it becomes clogged before it actually wears out. Cleaning it will save you some money and lengthen the life of your spray gun unit.