toilet tank

[farrington]

I did my first toilet install over the weekend and so far so good. One thing I'm not so sure about is the tank. I was told tighten the tank up until it touches the two ridges on the bowl that keep it from rocking front to back. I tightened up the bolts but the tank is still around a 1/16 to an 1/8 away from the ridges. They are pretty tight. I don't want to go any tighter fearing I might break something. The rubber gasket between the tank and the bowl is the correct one so there isn't an issue of it being too thick for the toilet. Is it normal for this to happen sometimes?? I was thinking a couple plastic shims should take care of it. thanks

 

[Plumber1]

It's ok. Your looking for problems if you go china to china. A little wobble is good. If you really have to shim, use a little sheet rubber at the back side will do.........