third question I ask my customers is, do you know who made your toilet ?
Most of the time there is a manufacture's
stamp on the toilet tank or bowl. Some of the most common are "K" for Kohler, American Standard, Crane, Mansfield, Eljer, Lamosa, Gerber, Glacier Bay, St
Thomas...ect. These stamps are on the top of the bowl
usually behind the seat. Some have no markings on the outside of the toilet, but, you may find a name and
model number on the inside of the tank.
Carefully lift the tank lid and set it aside on a large
bath towel. They are normally made from 'porcelain china' and can break easily. Write down any names and numbers
you find in or on the toilet, this information can be very useful in most search quires, whether you
are looking online, or at the hardware store.
There will be after market or generic flappers and
seals available for many toilet flapper models, however; if you can find original manufacturer parts, they
do fit the best and out last the others.