On Sun, 30 Mar 2014 19:12:28 -0600, JAS wrote:

It is where the RO system drained when filtering the water to fill the tank.

Ah, that makes sense.

The Sears Kenmore reverse osmosis water filtration system under
the cabinet was partially disconnected, so I simply removed it, in toto.
http://farm8.staticflickr.com/7367/1...5a1f76c48e.jpg

My sis told me to take it away, but do you think it can be
used for something useful?