After my toilet is flushed it makes a a noise like a ship's horn. What can I do to stop this?

A few seconds after it's finished flushing, the noise starts. It sounds like a ship's horn blowing. I can hear it through the wall in the adjoining room. I opened the valve to let more water in, but that hasn't solved the problem. What can I do to stop this from happening? What's causing it?

After my toilet is flushed it makes a a noise like a ship's horn. What can I do to stop this?
Quit flushing your toilet. That'll do the trick.
Reply:Put a new Fluidmaster water inlet in the tank.
Reply:The noise is caused by a restriction in the supply line. More often than not it will be very simple and easy to fix. Very common. First ccheck at the waterline coming out of the wall. Make sure it is fully open. if it is closed even a little it will make the noise. Next you are probably just better off replacing the fill valve in your tank. You can take the old one apart to look for built up sediment, bad parts, etc. but for the cost of a new one it is a waste of time. they are usually under 10 bucks at a home store. to replace it turn off the water at the stop. (supply coming out of the wall) Flush the toilet to remove as much water as you can. On the left underside of the tank you will see where the supply line is held to a threaded shaft with two large nuts, probably plastic, coming out of the tank. Undo the first nut to seperate the line from the fill valve. then undo the second nut to seperate the fill valve from the tank. there will be a small tube going from the fill valve to the stem of the flush valve stem. its held on by a clip of some sort. pull it off. Replace the old part with a new one and put the two nuts back togeather as they were before. they need to be good and snug but not rock solid. tighten by hand first then use a pair of channel locks to tighten about 1/4 turn more. there will be a new tube and clip in the part box. one end goes on a barb on the fill valve and the other on the clip, onto the flush valve stem. Turn on the water and you should be back to normal. Check for leaks. if you notice a small drip use the channel locks to slowly turn the nuts a little tighter. If these two quick fixes dont solve your problem, I would look to the supply stop. sediment and debris can collect in them over time enough to cause a restriction. changing these can be a little more trickie. let me know if you need more help.
Reply:This is the float valve vibrating. To confirm this, turn on the wash hand basin tap and the noise should stop.


If you have an isolation valve on the cistern, try adjusting it a little and that may cure the problem.


Failing that, a valve can be fitted to the cistern supply to prevent the vibration but the cost will probably be disproportionate to the nuisance.
Reply:The noise is coming from inside your tank because the mechanism on the working parts are constricted because of the water pressure. I would suggest changing out the parts or maybe taking the top off and looking inside to see which part is making the alleged noise. or perhaps you have a tugboat captains soul trapped inside your commode then I would call your local ghost whisperer to show him the way to the light.



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