20 Most Recent Toto Aquia II Dual Flush Toilet Questions & Answers

Sounds like your toilet is not vented properly. Possilbly something caught in the trap is causing it to syphon

most modern toilets do not have an overflow pipe to outside instead they overflow into the bowl itself so have to adjust level so it does not overflow into return

WHAT IS DRIPPING,?THE TANK ?OR IS STILL FILLING UP ?IT SOUNDS LIKE YOU NEED TO ADJUST THE WATER LEVEL TO THE PROPER 1.6 GALLONS PER FLUSH,WHICH IS MARKED ON THE INSIDE OF YOUR TANK SOMEWHERE,CAUSE WHAT YOUR HEARING IS THE WATER RUNNING DOWN THE OVERFLOW TUBE

That would be a leaking flapper valve. They are inexpensive and easy to install. Good luck I’m happy to help further over the phone at https://www.6ya.com/expert/robert_24775b73ca70da93

Your inflow valve is probably clogged. This is what allows the water in and how fast. You can change this also for a minimal cost.

Could be a few reasons, an ill fitting or cracked dress cover can sit to low, or abrasive wear and tear can grip the button restricting it from free movement. I fixed mine by placing a couple of small fishing sinkers in the bottom of the plunger giving it a little more weight.

replace the whole valve. It's cheap and easy to do. Probably you can install a universal valve. Look on e-bay or amozon I’m happy to help further over the phone at https://www.6ya.com/expert/robert_24775b73ca70da93

wear did you buy the unit

I had the same problem. The fix cost me 50 cents (literally). I just placed a quarter on top of the Blue and White flush buttons (not sure of the technical terms) inside the tank and now it flushes properly. It seems that the 2 plastic poles the extend from the faux chrome buttons are just a bit too short.
Hope this helps

the connection rod under the lid is broken or not making the connection just lift the lift to see.