How does a sponge filter work

French Fry2

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Feb 17, 2003
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I was wondering how a sponge filter works???I know it blows out air but how does the water get sucked up???Please help!!!

Also what do I need to make my own???:(
 
you pump air into it, and as the air rises it pulls water with it. The water is sucked through a sponge. Why would you want to make your own? They sell brand new for like $3.00
 
I dont know where you would be able to get the stuff.

Unless you have a source for a round sponge, I suggest you just buy a ready-made one.
 
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