Hi there.  I have had a feeling that there was something wrong with the pump
which takes water from the water tank to the sink when it wouldn't make a
sound, and the lights on the console dip to red (battery) when I try to use
it.  Well, I have just spent about 15 minutes filling the water tank tonight,
(and it doesn't even seem to be full yet), but it still is doing the same
thing.  When I turn the faucet to work the pump, it doesn't do anything.  The
external water input works great, as normal.  What should I do?  Help if you
can.  Thanks.  David.