In message , Lurch
writes
You can get dehumidifiers with pumps built in, failing that though an
automatic pump is an easy addition. You just want a condensate pump
from a plumbers merchants.

Keeping in mind there are a few types. The solenoid type makes a loud
rasp when it runs while other types like the peristaltic ones are pretty
much silent.

--
Clive Mitchell
http://www.bigclive.com