They can be, but it looks stupid. There will be a number on the underside of the lid, something like a (Crane)3-582 or a (American Standard) 4014. Find the name of the toilet, this number from the lid,(if you can't see the number from the lid, try the inside back of the tank), and check the second hand building supply or Plumbing stores in your area for the matching lid. A lot of toilets get wrecked, and some places save the lids for this reason.
How do I find out an answer to a question about toilet repair? I have a crack in my tank and I want to fix it. It is ceramic.
Where is it leaking ? Flapper in the tank, replace flapper. Between tank and bowl, separate and replace the seal. Toilet to floor. Replace the wax ring under the toilet, making sure it is thick enough to form a seal and the bolts are installed correctly and holding the toilet down.
Check the flapper and/or the ball cock assembly. Either or both probably need to be replaced.
Sunny Plumber - Fix Toilet
A defective flush valve causes the leak in toilets. A flush valve is a flap or ball plunger device that is supposed to act as a stopper in the bottom of the toilet tank. So to fix your toilet and save water, get any professional plumber to repair the valve or complete replacement kit . alliedallcityinc.com
so they can chat and maybe fix up their hair together.
That depends on what is wrong with it.
Would be risking damage to the tank and possibly open for a major lawsuit
Get a new toilet
You just buy a new one, you can't fix it, cause you turned it on right after picking it from the toilet, which you shouldn't had to do :(
The 'fill valve' is the one on the right side of toilet that has a pipe underneath running to a small valve on the floor or wall. These often go faulty. Not worth trying to fix it - new ones are cheap and easy to fit.
Pvc not properly put together or was not glued, Turn off main water supply cut out leaking area replace and put back together. Make sure you measure PVC so that you will purchase correct size.