To replace the pan (bottom), it has to be a replacable pan. To determine if
it is, see if it is bolted to the upright supports. If there are no screws
or bolts it is not replaceable. If there are, then try to find out who the
manufacturer isand contact them for the replacement pan.
If you can't find a drop-in pan liner from a local store (they are getting
harder to find), try a piece of sheetmetal or rigid fiberglass. Seal
around the edges with a "plumbers epoxy" putty. If you put the patch on
the inside you will have to clean the pan where patch edges will be so the
epoxy will stick. To cut a hole for the overflow tube, use a hammer and
chisel or screwdriver and punch around the area where the hole needs to
be. Seal this hole with epoxy putty.
To learn more service and repair information on evaporative coolers, visit:
The Cooler Doctor
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