Can I get a little info on those water dryer filters for people who
cannot vent their dryer to the outside?

I must be using the wrong search words because I can't find out much
about these.

Here's a little drawing I made so you know what I'm talking about.
http://mysite.verizon.net/bjkass123/dfilter.jpg

The dryer vents into a box with some water in it and the exhaust then
exits through slots in the top of the box.

How much water should go in the box?
What exactly is this supposed to do?
How well does this work to trap lint not trapped by the dryer lint filter?
Is there something better to use?

Any other comments?

Thanks!

Joy