The water in the bowl does not evacuate properly. Seems only half of dirty toilet water leaves the bowl leaving other half of dirty toilet water to mix with clean water coming in from bowl. Secon, third and fourth flushes accomplish nothing. Adding water to the bowl from a bucket does seem to "clear the bowl" of the dirty water but the problem persists.

Water is not draining completely from the toilet line to the sewage tank. If there is a 'low/little slope' section anywhere in that drain line, solids WILL settle and collect there and cause water to back-up in the toilet drain line. Then the toilet will not flush completely or at all until the 'soft blockage' is cleared out and the drain line emptied. Al 'gravity drain' toilets require a free draining/empty drain line that allows flush water to drain unrestricted. A basement toilet has a pump that 'forces' flush water up and out with enough pressure to sometimes force out the 'soft clog.'

If the toilet is the only fixture in the bathroom group that is having an issue, then there is a partial blockage in Strap of toilet or in drain pipe close to toilet. If other fixtures are showing sluggish drainage, then the main drainage line is clogged. If all is fine with tub lav shower etc., pull toilet from floor and carefully turn upside down, and look to see if anything is visable. if so remove it and reinstall with new seal(wax ring). Also, look into pipe and see if any water is standing in it. If water is standing in pipe, the drain line is clogged and must be rodded(snaked) out to cure problem

Ower thus keeping the water level lower in the bowl. If this is a new style toilet , then you won't get it any higher. The design is such that the "S" trap is lower thus keeping the water level in the bowl lower. This is part of an ecological water saving move. If this is an older toilet, then you have ablocage in the trap and needs to be cleaned out to allows the water to rise up properly.

you have a blockage maybe outside in your shores

Make sure the fill tube in the tank from the fill valve is in the overflow tibe inside tank. The tube allows bowl to fill with water to correct level.

Hi,
Reset the fill valve so that it does not fill the tank so full....this will be easier then trying to find a different flapper that will drop down faster, which is the only other thing you can do...

heatman101

It may be the wax ring expanded and is restricting the flow.
If you did not install the unit FYI ..the wax ring is inserted between the toilet and the waste pipe to prevent leakage. Sometimes it moves out of place when the toilet gets installed and blocks the flow

I would check to see if the water holes are somehow blocked or pluged. also check the water level in the tank and make sure that the level is correct ( if not - adjust the water height ).
is this a new toilet ? did the problem just start ?

c...

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