Kohler santa rosa fills, shuts off, a little water leaks from tank, toilet refills and repeats the leakage into the drain.

Sounds like an air lock is making the water fill in squeeze thru the piping. C if u can undo the piping from the tap below the tank and take out tank and try flushing the unit thru from the out side fill pipe. U may hv something stuck in the pipe line. cheers

flush valve has obstruction and tank is not filling all the way to just below overflow tube.

Hi,
I would say yes....here is the .pdf for your toilet and it has nothing like that in it...your toilet should be a simple fill device and flush mechanisim...
I would return it for a new one...

http://www.us.kohler.com/onlinecatalog/pdf/1066506_2.pdf

heatman101

Hi and thank you for using fixya:
Inside the tank there is a long standing tube that at the top end it has a little buoy that regulates how much water needs to be in the tank if you push it up you are going to see the water stops to run. So just bend it down a little about an inch
thanks

look under the tank, their should be a nut holding on the old one. by removing that nut the part should free itself.

it is probably falty get a new one

Tighten the nut a quarter turn.  If that doesn't do it then shut off the water supply. Unscrew the nut and get you a new rubber washer to replace the old one.  If that doesn't do it, then go to the blue or orange box store and get you a new 12" stainless steel flex line for toilets.  Bring your old supply line in to correctly match up the size so you don't have to make 2 trips if you buy the wrong one.

shut the water off to the toilet .Remove the toilet supply from the tank end.slowly turn the valve on to see if their is any water coming thru the supply.If water is coming thru the supply than you know you need to change the ballcock.This is the part in the tank where the water comes out of.

okay depending on the type of toilet ball **** (i know its a funny word, but it's really what its called.) you have one the most standard type is the long wire with the big ball on the end. you need to adjust this ball **** so it goes lower test it out, flush your toilett and wait till the water drains then when its supposed to come back up push down on the ball **** and youll see the water will start to fill, so then adjust the little screw on the fill valve (the other side of the floater where its attached)

you may need to shut off your water supply and drain your tank depending on how skilled you are,

pretty simple work, if you have questions feel free to ask.