I cant think of the name of that ballcock but if it is the one i think you have to turn it counter clock wise and put it up, turn off water. Get the name and go on the net and ask how to ajust it, also it might be your flapper leaking, put color egg dye in tank, dont flush and see if it comes through, flush tank first let fill ip 1/2 way turn off water that way you can see if it is the flapper, if you fill it up to top you wont know which is leaking.
Art retired plbg
