Pressure assist to gravity. Toilet slow to drain into bowl.

[Clarkee]

My wife and I just bought a new to us, home. The toilet in one bathroom had a sloan power assist flush installed originally, it was not working appropriately and was just over all annoying as the flush was super loud and it had developed a leak. I decided I'd remove the power flush and just put a typical flapper flush and fill valve installation. Picked up a kit with everything I needed and installed it. Got the tank put back on the bowl, this is a kohler toilet by the way. Let it fill up with water and went to flush it, the water took forever to go from the tank into the bowl. I did the bucket test on the toilet and it drains just fine. I can see water coming through the rim jets and i can feel a jet of water down in the trap but no matter what tank adjustments I make, the thing just flushes very slow and never actually creates a cyclone to remove the entire contents of the bowl. If anyone has any suggestions I'd greatly appreciate it!

 

[Reach4]

If I understand correctly, you modified the power flush toilet to use a conventional flush. That is unlikely to work well. Get a new modern toilet. Flush will be good.

 

[Sponsor]

 

[Terry]

The pressure assist bowl will not work with a gravity tank. You need a completely new toilet there.

 

[Clarkee]

The toilet seemed to be retrofitted with the pressure assist flush tank, the reason I figure this is because the original kohler triangular tank to bowl gasket was not there and of course the tank to bowl bolts were not installed correctly. The toilet seemed to be a gravity flush toilet originally. See attached photos, I'm sure the majority of you have seen more toilets than I have and can confirm whether or not I am off base on my assumptions.

 

[Terry]

The 1.4 was a pressure assist. Only Kohler was using a 1.4 GPF, which was done with a restricter on the inlet to the Flushmate. And they have the 3 bolt tank install.

The bowl isn't designed to siphon. The water needs to be pushed through.
I took this picture at the Flushmate factory.

 

[Clarkee]

Terry, I really appreciate the education, thanks to much! Looks like I'm off to purchase a new toilet.