Water level in bowl low

SOURCE: American Standard Elongated toilet bowl water level slowly drops

The tank holding the proper amount of water is a good sign. The inside of the stool is like the GOOSE NECK under you sink. It always holds water. This may sound like a bit of a hassle to do but if all 3 toilets are identical, here is what you can try if you are a bit handy. Go to the hardware store and purchase 4 toilet wax rings with a plastic flange and a few sets of toilet floor flange bolts(they are cheap and you can always return if not used, as It is better to have xtra parts on hand). Turn off the water supply to the "Mystery Toilet". Leave the tank and everything connected to the stool. Flush the toilet and remove all excess water from the tank and bowl. This can be done with a shop vac, sponge or towel. Disconnect the water supply to the tank. Remove the bolts holding the stool to the floor and carefully remove toilet. Scrap off all the old wax from the floor flange and bottom of stool. Now go and repeat this proceedure to one of the toilets that is working properly. In other words Switch the "Mystery Toilet" with a "Working Toilet" and see how they react. If the working toilet does it in the same bathroom and the "Mystery Toilet" does not do it in the other bathroom then you probably have a VENTING PROBLEM. If the "Mysery Toilet" Does it in the other bathroom then you most likely have a Defective Toilet. This Job is best done by 2 people, as it can sometimes be challenging to center the new wax ring on the toilet flange. Reconnect to the floor and reconnect water supply to the tanks. DO NOT OVERTIGHTEN BOLTS to the floor flange as you may crack the toilet. All drain lines must be vented properly for water to flow. If you are curious check out drain venting on the internet. Also, sometimes a vent can become obstructed with debris, ice, bird nest, etc.. I would 1st check the vent on the roof visually and then have someone flush and listen. If you believe the vent is clear....Then do the toilet switch and go from there.....Hope this helps and Happy Holidays....Joe

SOURCE: the fill valve in my toilet tank leaks.and water level can not be

there are different fill valves if you have the one w/ two screws on top you have to tie down the one on your left hand side if you have the one w/ a side plastic long screw adjust that one

SOURCE: water leaks from tank to bowl till water level in the tank is jus

Yes. You will have to remove your tank from the bowl to replace the defective fill stack(the tube thing your flapper is attached to) it is not as hard as it seems.First remove water supply tube.Then remove the through the tank bolts. should be two of them. Lift off and turn tank upside down. remove spud gasket. Unscrew old stack. You should be able to get a universal kit to work with your tank and should come with all new parts including new flapper and spud gasket. You will need new through the tank bolts and note the sequence of assembly to get water tight seal on tank. Hope this helps

SOURCE: In an American Standard Flowise dual flush toilet,

No there isn't. It is set by the design of the bowl and the depth of the p-trap inside the toilet

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SOURCE: After flushing, water level in bowl fills and then slowly drops.

Check to be sure small tube is flowing inside the ovefow tube. This is the water that flushes the rim holes, and refills the bowl. If you don't have flow clean or replace the float valve.