How do u stop the water from flowing in tank after u flushed it

Make sure the flapper is closed. Lift off the tank top and see if it dropped. They sometimes get caught on the lift chain. Also check to be sure the float is set to shut off before the water reaches the overflow tube.

Check the tank water level, it should be at the mark in the tank or 3/8 to 1/2" below the top of the over flow tube. Now look at the flapper, If it has wavy edges on the flat surface, replace it. The linkage between the flapper and the flush lever should have 1/4" play when the tank is filled. Also, check the small tube coming out of the top of the ballcock and make sure it's connect to and draining into the white overflow tube. If the leak is at the base of the tank there are two brass bolts on both sides of the flapper, if the tank is loose, leaking or wobbly, snug up the bolts. If there is dampness at the base of the bowl, pop off the china caps and snug down the closet bolts. I would check all this out before paying 50$ for a service call and 50$ a hour thereafter. More questions? I'm as close as a click. TOM

I would check all this out before paying 50$ for a service call and 50$ a hour thereafter

Tom is showing his age again... ;)

Try $100.00 to $125.00 an hour (or even more) nowadays!

I have been retired for over 25 years. While I realize that the labor costs are higher in today's market the advice I have given you is solid. Follow it, and I bet you are potty problems will disappear. Good luck, Tom