Toilet tank sputtering noise when refilling - American Standard Home

SOURCE: Toto Toilet - no water flow to refill tank after flush

Remove the tank lid and look at the fill valve. Is it a yellow valve?
This fill valve is common on the Toto Toilets and can easliy plug with debrie.

They can be disassmbled and cleaned. however, I usually just replace the valve with Fluid Master Fill valve.
You will also want to check the water coming into the toilet by turning off the water that supplies the toilet and disconnecting the water supply line. After removing the water supply line turn on the water at the valve to make sure that the water is flowing properly. Check the supply line also to make sure it is not plugged.
Be sure and place a small container to catch the water that will come from the valve. A towell will also help from making too much of a mess.
If the Supply line and the valve are clear the problem is in the fill valve.
The G-Max system denotes the Flushiing system which is a 3" flapper that allows the water from the tank to flow into the bowl quicker.
Good Toilets!

sanray

SOURCE: Toilet Refills Every 15-Minutes

I have minute amount of leakage into the bowl causing mold to grow. I believe that it may be the rubber seal for the flapper body to the porcelain.

SOURCE: toilet tank will not refill with water after flushing

I fixed the problem. There was a clog in the pipes so i just flushe dthe pipes out.
thanks,
for your help

SOURCE: toilet trouble

Based on the phrasing of your question, I'm thinking that the bad noise happens for the first time when the valve opens to start filling (this happens when you first let water into the bowl) and then again when the valve closes (when the cistern is full). Valves sometimes have a high-pitched squealing noise when it takes a long time to open or close this valve. Sometimes, you can make it go away by turning the screw to adjust the height that the ball/float has to be in order to shut off the water (the more horizontal, the longer it takes to shut off the flow, and the longer the noise continues). Sometimes, this is just caused by an aging mechanism and it turns out to be quicker and easier to just replace that part of the toilet (they make replacement kits that are very inexpensive and easy to install).

SOURCE: My Toto Drake toilet makes a noise like it is gasping for air

just simply clean the auto switch,the noosle where the water comes out when the floater goes down everytime the tank is empty with water.