My American Standard has valve in tank (0915A) that sometimes fails to rise the final half inch needed to shut off the water. It never used to do this, and has not been touched. There is no corrosion or build up on the parts.
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Re: water shut off sticks open
Make sure that the float in not touching the side of the bowl. You may oil the hinge on the float. Lastly you may turn off the water , open the valve and see if any of the internal parts are swollen or enlarged interfering with the final rising of the float, and closing of the valve.
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The American Standard Cadet 3 flowise one piece toilet uses a flapper valve with a soft nylon washer to seal against the water outlet.
Over time this nylon washer develops 'puckers' causing water to seep between the nylon washer and the seat of the flapper. This seepage causes the water level in the tank to drop to a point where the water inlet valve opens to replace the lost water in the tank.
There are two ways to correct this problem:
1. Replace the soft nylon washer on the flapper, or
2. Replace the entire flapper valve.
Hope this solution helps.
If you manually pull up on the float of the fill valve will it then shut off? If it does, most likely your water pressure is too high, should be around 60 psi. More then 80 and it won't shut off. You may need to add a restrictor to the fill valve. Most fluid-master units come with one already installed, you could try one of them.
Shut the water off flush toilet and there should be two bolts that you can see at the under side of that tank. You need to remove them bolts and lift off the tank and install a new seal. Sometimes i mean sometimes you can tighten them a little and they will stop leaking. If it has been for awhile id just replace it.
can be a few reasons -- remove cover first check flapper at bottom of tank sometimes wears out or can get build up and not seal right couple of bucks to replace or float arm that moves up with the water to shut off the water valve may be out of adjustment or damaged and needs replacement or lastly valve unit gone bad and needs replacement
There's a lot of variety in the works in the toilet tank. Assuming this is not a pressure-assisted toilet-----First understand the three valves are:
1. The shutoff valve - on the supply line coming into the toilet tank.
2. The fill valve - inside the tank, opens with the float descends, closes when the tank fills up.
3. The flush valve - inside the tank on the bottom. Common old style is a flapper on a pivot. Yours may operate straight up and down rather than on a pivot.
Three very common problems are----
1. The chain that connects the handle to lift the flush valve is getting caught, not allowing the flush valve to close.
2. There is problem with the flush valve being able to get a good seal when it closes - could be debris or misalignment.
3. The fill valve is not closing when the tank is full, could need adjustment or there is debris preventing the valve to seat.
Here's are some steps to diagnose---- close the shutoff valve. Wait a few minutes as you watch the level in the tank. If the water level decreases, you have problem with the flush valve.
To confirm the fill valve as the problem, turn the shutoff valve back on. Lift up on the float that is supposed to turn off the fill valve. If it shuts off, you should be able to adjust it - most have a +/- plastic adjustment screw. But if raising the float by hand only slows it down, you have problem with the seating of the fill valve - which can sometimes be cleaned, but more often would need to be replaced.
I hope this is helpful. Thanks for using FixYa.
is the flapper weighted? if it is it will cause it to shut prematurely. one thing you can do is increase the water in the tank. you might have to buy a pvc cuppler to put on the over flow to allow it to fill up more. korky makes a nice flapper thats not weighted
American Standard 2474016.222 also had the same problem mine had two discs apparently on efrom factory perhaps and one from the floating disc that must have fallen off I used a screw to get them out adn drained as much water as possible then went back and forth adding water a little at a time and then using a tolwel to sponge the water out (no shop vac around) After findign one I then found the other. This post saved me sooo much money adn I have dealt with the intermittant problem for years in this spare bathroom THANK YOU SO MUCH