Simply Koi and More Koi

i was lucky to find in my garage a novotec filter for a agie wiresparker brand new it is used to deironise water but the inside is the same as the carbon filled hose tail to long rod at bottom with filter the at the top water out its i nicked it wene my company i was working for went tits up lol and at £200 stainless and it was on loan so makes it better .i think i have a winner its going to need a lot of carbon as its 9 inches across and 29 high so i need a lot and hopfully someone here knows a good supplyer
i am just awaiting the nod from a good freind who is giving it a look over tuesday but he has seen camera photos and is very sure its a winner i just need a sack of carbon

i know avenue fisheries sells it by the kilo