Dual flush toilet takes a long time to refill after flushing

A dual flush toilet is a fantastic option to save water and make your home more environmentally friendly. Giving you the option for a half flush or full flush at your discretion, you can lower your water consumption while still getting the job done. However, like all toilets, they can present problems that mean the toilet doesn't function as it should. One common problem in dual flush toilets is constantly running. You hear the tank constantly being filled, even when it should be finished and completely full. If your dual flush toilet is constantly running, first check for the top three problems that cause this trouble:
Flapper or Seal Trouble
The flapper or seal is often the culprit in constant running water in both normal and dual flush toilets. Over time, this rubber piece may become brittle or simply misaligned. To check it, turn off the water supply and flush the toilet to completely empty it of water. Remove any remaining water with a sponge or towel. Then, you'll need to remove the flush valve canister in order to access the seal. Once you've found the seal, check to see if there are any cracks in the seal. If there are, you'll need to replace it. Otherwise, check to see if it can be re-aligned to sit nicely in its place. Some homeowners find that applying a bit of Vaseline to the seal can renew it, making it supple and functional again for a while at least.
Debris
Sometimes the water supply isn't as clean as we think. Or, dust and dirt may be able to enter the toilet, causing the fill valve to malfunction. To check it, turn off the water supply and remove the lid from the fill valve. Then, look for any debris and remove it. You may also consider brushing out the valve with a small brush. Once you're certain it is clean, recap the valve and check if the problem has been solved.
Broken Zip Tie
The fill valve in most dual flush toilets has a zip tie to keep the base of the fill valve in place. If the fill valve isn't strongly secured, it can cause the toilet to run. Sometimes these ties wear out or break before the rest of the device does. You'll need to replace a broken zip tie with a new one if you find that it's broken. If possible, you can place two zip ties on the fill valve in order to assure that the base doesn't wobble, causing the leak. Many times these problems are easy for the average homeowner to check for and repair. In the case that you are not able to find a solution to your dual flush toilet's constant running, then you'll need to call in the help of a professional plumber. A high quality plumbing company will be able to help you troubleshoot your dual flush toilet troubles and make sure it's functioning properly again.

To replace the ballcock (flush valve):

1. turn off water valve at wall
2. flush2 times
3. disconnect line from bottom of tank
4. unscrew nut where line enters tank bottom
5. remove lift device (Chain) from stopper at bottom inside tank
6. lift the ballcock up and out of tank.
7. replace withnew
8. reverse to install.

mike

there should be a screw adjustment on the ballcock or fill assembly...screw that down some to adjust...that regulates your tank water level....that screw goes in or out to adjust...one or other should do the trick...may have to do this a few times to get proper adjustment...good luck..

Kohler toliets can be a pain to repair. I have found with them that the only thing to do with them is go to a plumbing company, take the model number with you and replace all in the inner parts to it. You will replace the fill valve and flush valve. After I do this on Kohler I don't have anymore problems with them. It should work for you, just make sure they are Kohler parts. Good Luck

Tool Belt Diva
www.toolbelt-diva.com

Very carefully!!!!!! Why would you take it apart not knowing how to put it back together again?????? Take pictures next time, after you call a plumber to put it back together again Humpty....

Several ideas. Start to fill? Have you looked inside the tank to see what's going on? If it just filling very slowly, then you most likely have some calcuim build up inside your flush valve blocking some flow, if this is the case you will have to clean the flush valve. If your flush valve is staying up and the toilet is "running" unitil the float drops. The float (either the arm ballcock style, or newer fluidmaster) is rubbing on either the flush lever or side of the tank, and taking longer to drop to let the water start flowing. I

I believe what your plumber was referring to are the flushing orifices. Yes they have changed through the years. Unless you have a pressure assisted toilet, the orifices are what makes it flush, by breaking the trap seal and creating a vacuum. Now that being said you can check to see if this is the problem by filling up a bucket with aprox. 2 gallons of water and dumping it straight into the bowl. It should flush right down with out hesitation. If it does then your orifices are not working properly. If this is a new stool, it is possible it is just a bad mold and should be replaced. I hope this helps. Your new toilet should flush for you.

There is usually a small tube on the top of the ballcock or the fill valve in the toilet tank. The tube should be clipped to the top of the flush valve pipe so that the water will flow into it. Should the small tube become loose and fall off of the clip, the refill water will not make it back into the bowl.

When you say 10.5 inches from wall, do you mean that from the center of the drain in the floor to the back wall is 10.5 inches? If so, you need a toilet for a "10 inch rough-in" dimension. The Aquia doesn't come in that dimension. Sorry!

Caroma Sydney Smart model 270 comes in a 10 inch rough-in and is a dual flush model. Note that all dual flush toilets are fairly expensive as compared to normal toilets. HOWEVER, genrally speaking, ALL 10 inch rough-in toilets are fairly expensive just because the low volume that are sold.