Within the past week I installed Korky/Lavelle brand toilet
overhaul kits inside the tanks of my three toilets. They
all work fine. One of the three toilets has become a
"whistling toilet" - meaning that at unpredictable times
there is a constant whistle sound coming from inside the
tank. I flush it, and the whistling stops - but resumes
between 30 minutes and 24 hours later. The instructions
that came with the kits do not address this problem. No
response from the manufacturer.
Any ideas how to stop this?
Likely your tank is leaking into the bowl and the valve is opening very slightly
to refill the tank. Fix the leak and you should fix the noise.
You can confirm by putting dye into the tank and letting it sit for a while. If
any color shows up in the bowl then you have a leak.
sound was caused by a leak which in turn causes the fill
valve to open. Maybe that is true, but I wonder why I don't
hear that same sound when the fill valve is opened during a
flush, or when I push the float down. Ideas?
Can you whistle? Can you whistle with your mouth wide open?
Just like air through your lips, the water only makes the sound when flowing
through a tiny orifice, not a wide open tube. It sets up the right
harmonics to make the sound you hear. It is a tiny leak.
I can't whistle at all, but I see your point.
sound when flowing
To test idea that I used a spoon and cup and gently removed
water from the tank until the fill valve started flowing a
very small amount. A fzzzzz sound, very low, but no
It has now been two days without the whistling effect, so
maybe the problem was something related to a fresh
installation of rubber washers or the flapper valve and
things have now swollen or otherwise assumed their intended
shape and are doing their designed job of not allowing
Another thought I've had is that whenever I shut the water
off at the street for plumbing repairs air bubbles or
something seems to develop in the lines, so that when the
water is turned back on, and faucets opened or toilets
flushed, there is sometimes a sputtering of water and air.
Maybe one of my hypothsized air bubbles was causing the
Thanks for your theory on the whistling, but I'm not 100%
convinced you are correct. :-)
"Best to call a plumber and have him rectify the situation
before it becomes more serious."
"More serious" meaning, maybe, the toilet starts
singing off-key? :-)
(Day 3 now of no whistling.)
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