Foghorn noise when flushing toilet

Every time we flush the toilet there's a loud foghorn noise that lasts a second or two. It's only this one toilet. Can I fix this myself?

Asked by Cheryl on 26th Apr 2026
Expert Trade Answers
"Water inlet valve, easy to replace, hope that helps"
Answered on 26th Apr 2026 - Member since Mar 2026 - report
"Hi it sounds like a build up of scale in the feeder they are easy to change but if you not to sure get a plumber."
Answered on 26th Apr 2026 - Member since Jan 2026 - report
"It will be a faulty washer or inlet valve, you'll need plumbing tools to change the inlet valve or you need to by the right washer to match it, i recommend getting someone professional out to look at it and fix it, cos they can be tricky sometimes and you need knowledge on the valves your looking at."
Answered on 26th Apr 2026 - Member since Mar 2026 - report
"If you have a isolator on the inlet valve. Or water stop cock works easy enough to change yourself"
Answered on 26th Apr 2026 - Member since Sep 2024 - report
"Replace the fill valve depending on how handy you are. Not an overly difficult task but if done incorrectly you can flood your floor"
Answered on 26th Apr 2026 - Member since Apr 2026 - report
Find Tradespeople, compare up to 3 quotes!
It's FREE and there are no obligations
Ask a Trade
Got a question that only a tradesperson can answer? We have thousands of trades ready to answer any question you may have.
Ask your question
Ask a Trade

Are you looking for advice on a DIY project or have a question for our tradespeople?

We'll email your question to tradespeople who are skilled in your chosen category.

Your question will be made public - please do not include any personal details.

{{ first(ask.errors)[0] }}

By continuing you agree to the Community Guidelines.

Report Content

{{ first(reportForm.errors) }}

Thank you

Your report has been created and will be investigated shortly.

Ready to get a price for your home improvement project?
Get started

Over 1 million homeowners and over 50,000 tradespeople
use MyJobQuote nationwide each year