Quick Answer:
If fine grit is clogging aerators immediately after a repair, remove all faucet screens and flush lines one branch at a time to clear sediment before reinstalling screens. Test each fixture after flushing to confirm clarity.
Why This Happens
Repairs that disturb old piping, solder, or a water meter can send tiny particles through the system. Those particles travel until they hit the small holes in aerators or shower screens and block flow. Changes in flow or pressure during work can also loosen scale and grit; this is similar to issues people see with Pressure imbalance after water heater install when flow conditions change and carry debris into fixtures.
Step-by-Step What to Do
1. Gather tools and prepare
- Shut off the main water supply if advised by the repairer, or isolate the work area as needed.
- Have basic tools: pliers, a bucket, a towel, replacement screens/aerators if available, and a flashlight.
2. Remove aerators and screens
- Carefully unscrew aerators from each faucet. Keep parts in order so you know what fits where.
- Place screens and aerators in a labeled container so they don’t fall back into drains.
3. Flush each branch line sequentially with screens removed
- Turn water back on for one branch (kitchen, then each bathroom, then outdoor spigots), running the hottest and coldest taps for 1–3 minutes each to push out sediment.
- Use a bucket or hose on fixtures that can handle the flow. Observe the water — let it run until it looks clear.
- Move through the house branch by branch rather than running everything at once; this prevents debris from traveling and re-clogging other fixtures.
4. Inspect and clean parts
- Rinse screens and aerators under running water. Use a soft brush to remove grit. If screens are heavily damaged or pitted, replace them.
- Check supply lines for visible debris at accessible points.
5. Reinstall and test
- Reinstall clean or new screens. Turn taps on slowly and test flow and temperature. If water clogs quickly again, repeat the sequential flush for the affected branch.
- If clogs persist after flushing and replacing screens, stop and consider the signs in the next section.
What Not to Do
- Don’t keep reinstalling clogged aerators. Repeatedly screwing a dirty screen back in only hides the problem and risks driving grit deeper into the fixture.
- Don’t use compressed air into a faucet; it can force debris into valves and cartridges.
- Don’t pour strong chemical cleaners into open fittings — they can damage seals and are unnecessary for gritty sediment.
When to Call a Professional
Call a plumber if flushing each branch and replacing screens does not clear the problem, or if multiple fixtures remain blocked. Also call if you notice ongoing noise, pressure loss, or unusual drainage sounds like Whole house gurgles after drain work; those signs can indicate a larger system issue or dislodged material in the main line that needs equipment and experience to remove safely.
Safety Notes
- Turn off water at the main only if you understand how to re-pressurize the system; follow any instructions from the repairer.
- Avoid removing internal valves or cartridges unless you have the right parts and know how to reinstall them to prevent leaks.
- Wear gloves and eye protection when cleaning parts to avoid contact with contaminated water or sharp edges.
Common Homeowner Questions
- Will running my taps long clear all the grit?
Short answer: Often yes for a single branch, but you should flush each branch separately with screens removed to avoid cross-contamination. - How long should I run each tap?
Short answer: Run each tap 1–3 minutes or until water is visibly clear; longer if you still see particles. - Can the grit damage fixtures?
Short answer: Yes — abrasive particles can wear cartridges, valves, and finishes over time, so clean or replace affected parts promptly.