False bottom/filter question

[theBFG]

I posted this on the AG forum, but probably should have posted it here first:

So I just started AG recently and have converted a round 10 gallon cooler (one from home depot) into a mash tun. I have a ss false bottom connected to the spigot. The fb also came with a round filter. I can't seem to find a picture but, if needed, I can take one and post it when I get home. Essentially its a large round sponge.

My question is...where does this go? Above the fb? Is this even needed? I'd rather not use it as it looks like it'll be a pain to clean, but it would probably provide a much cleaner wort if I did use it. Thoughts? Thanks in advance -

This is essentially the fb I am using:

http://www.brew-dudes.com/wordpress/wp-content/uploads/2009/01/stainless-false-bottom.jpg

 

[OneHoppyGuy]

I've used false bottoms identical to that and never saw or used a sponge. Perhaps the sponge is for wiping beer suds off your mustache? Did it come with square pants?

 

[theBFG]

Haha
http://imageshack.us/photo/my-images/447/e5fi0x0hd.jpg/sr=1

So this is what I posted in the other thread on the AG board, mystery semi-solved. No one seems to use these, so it looks like I won't be making a habit of it. Thanks for the replies -

Ok, that is what I was thinking, which is why I was confused when my lbhs was telling me about it. I had always read it was the grain bed that was the filter, so I'm not sure why is was marketed as something that was necessary. It made things painfully slow on my first batch. It is made out of scotch brite material:

http://ak.buy.com/PI/0/350/210584500.jpg

Pretty much indentical to this except mine is (was) white. I'm going to go ahead and leave it out next batch (tomorrow), I really don't see the need for it. Thanks for all the replies!