Cheap bulk carbon

[T0aster]

I've read threads where people can't find cheap carbon.
The best place is a garden shop that has pond supplies. 2'nd best is a pet or specifically fish store with pond supplies. 3'rd will be any other pet store. Beyond that use non clumping kitty litter instead. It's not nearly as effective but still works.
Carbon is cheaper than it appears. A gallon will run $20 - $30 on the auction site. That's 231 cubic inches. You don't completely fill the can, you only need a layer of 1/2" to 1". A gallon is enough for a 1/2" layer on a 36" long can with 4" sides.
It can also be reactivated. Rinse the carbon in warm filtered water. After it dries, soak it in cheap unscented rubbing alcohol until it evaporates completely.
Hope this helps.

[green acres]

water stuff is no good wont last the stuff for filters is air charcoal. tried it already and learnt the hard way

[green acres]

here`s that link for the filter. this is the one i built.

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[T0aster]

Originally Posted by green acres

water stuff is no good wont last the stuff for filters is air charcoal. tried it already and learnt the hard way

Don't use "charcoal", it's not the same thing. Carbon is carbon. It's an element. The only difference is the shape of the pieces.

[green acres]

the packages i bought said activated carbon on them. it was made from coconut shells and was supposed to be the best type for filters that i had read . i agree on the size thing we need smaller for our purpose. i geusse they were false advertising. everything i`ve read about this stuff is that if it`s to filter water it wont last. geusse it`s time for more reading. i bought 3 of those odor socks and they suck. i tried to recharge them and it dosn`t work. it only lasted about 2 months. stay away from thier site i went there the other day to complain and the site was hijacked by some hacker. geusse someone else wasn`t happy.

[T0aster]

i think your misinterpreting the whole water and air comparison. It doesn't last as long when being used to filter water It will deactivate and erode quicker than when only having air flow through it.